Sally answered 90% of the math testquestions and 80% of the history test questions correctly. if each test had 50 questions , how many questions in all did she answer correctly?

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Answer 1

Answer:

85
Step by step explanation

Related Questions

Calculate the radius if the circles given the Diameter.

d= 7.8

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the radius would be half of that. so the answer is 3.9

Jacob used an empty can for a project shown below the pills the label of the king in find the area of the label what is the approximate area of the canned label?

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Answer:

B: 100.53 in²

Step-by-step explanation:

From the image of the can label shown, we can see that;

Height; h = 8 inches

Diameter; d = 4 inches

Thus, radius; r = d/2 = 4/2 = 2 inches

The can is a cylinder and the label covers only the curved surface area. Thus, formula for curved surface area of a cylinder is;

A = 2πrh

Thus;

A = (2π × 2 × 8)

A = 100.53 in²

Please help me someone ?

Answers

Use parentheses to represent infinity or negative infinity, since positive and negative infinity are not numbers in the usual sense of the word and, therefore, cannot be “equaled.” A few examples of an interval, or a set of numbers in which a solution falls, are [−2,6) , or all numbers between −2 and 6 , including −2 , ...

3x-5 when x=3 work and answer

Answers

Answer:

when x =3 the answer is 4

Step-by-step explanation:

3(3)-5

3x3=9

9-5=4

Step-by-step explanation:

3×3=9

9+-5=4

I believe it's 4

When 3 numbers are multiplied together the answer is 30 when the same 3 numbers are added together, the answer is 0 what are the three numbers

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Answer:

6,5,1 ?

Step-by-step explanation:

Find the value of x.

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Answer:

Step-by-step explanation:

-------------------------

Answer:

Step-by-step explanation:

48=7x+13

step 1 subtract each side by 13

35=7x

step 2 divide each side by 7

x=5

Write the system of 4 linear inequalities graphed below.

Answers

Answer:

Answer:

y > 2x - 1

y ≤ 0.5x + 4

Step-by-step explanation:

solid line: (0,4) (-8,0)

m: (0-4)/(-8-0) = -4/-8 = 0.5

b: 4

y = mx + b y = 0.5x + 4

dotted line: (0,-1) (-2,-5)

m = (-5 - -1)/(-2-0) = 2

b = -1

equation: y = 2x - 1

System: y ≤ 0.5x + 4

y > 2x - 1

Step-by-step explanation:

Help me and please be sure of ur answer.

Answers

Answer:

1. Evan

2. Stacey

Step-by-step explanation:

Select all the situations that can be represented by an exponential function.
1. Jim deposits $1,000 in an account that doubles in value every 7 years.
2. Brian deposits $30 in a savings account. Then he deposits $2 each month for the next 9 months.
3. Leon runs a mile in 8 minutes. Then he runs a mile each day for the next 4 days, reducing his time by 1.5% each day.
4. Cynthia runs a mile in 9 minutes. Then she runs a mile each day for the next 4 days, reducing her time by 6 seconds each day.
5. Marie deposits $30 in a savings account. Then she makes a deposit each month for the next 9 months, putting in $2 more with each deposit. Please answer with an actual question as fast as you can.

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Answer:

m and ms

Step-by-step explanation:

A driver was going more then 15 miles per hour over the speed limit when he received a speeding ticket. If the driver's speed was 75 miles per hour, what was the speed limit, m, on the road where he was driving.

I need help with this ASAP!

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Answer:

Step-by-step explanation:

You just subtract 75 - 15, and you get 60. I hope this helps :)

If a = -2, then what is the value of -2a+ 3?

and

If y = 3, what is the value of -3y - 1?

Answers

Step-by-step explanation:

1) 7

2) -4

hope this helps

Find the solution to the system of equations. Write the solution as an ordered pair. 3x+2y=-7 and 5x-3y=20

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Answer:

3x+2y=-7

5x-3y=20

8x-y=13

8x-13=0

y-13=0

8x=13

y=13

8x/8=13/8

y=13

x=13/8

y=13

Pls help me!!!!

3/4 ton= Ib

Answers

Step-by-step explanation:

2666 and 2/3 ok try thisyeh

Answer:

1,500 lbs.

Step-by-step explanation:

There are 2000 lbs in 1 ton.

[tex]\frac{3}{4}[/tex] × [tex]\frac{2000}{1}[/tex]= [tex]\frac{6000}{4}[/tex]

6,000 divided by 4 is 1,500

Answer: 1,500 lbs.

The equation m=40g gives the distance in miles, m, that a car can travel using g gallons of gas.
B. Write an equation that represents the inverse function: the gallons of gas as a function of distance in miles.
Question: How can I write an equation that represents the Inverse function of this problem?

Answers

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the Concept of the function.

to get the inverse of the function,

let's consider that y is the function of m

hence, y = m

now, we know that m = 40g

hence, relatively, y = 40g

but to get inverse, we need gallon of gas as function of distance, hence

g = y/40,

since we know that y = m, replace it

hence the new inverse function is,

====> g = y/40

The ocean's surface is at 0. Which is farthest from the ocean’s surface?
A.
a fish swimming at -22 feet
B.
a kite flying at 48 feet
C.
a shipwreck at -52 feet
D.
a balloon at 19 feet

Answers

Answer:

C. a shipwreck at -52 feet

Step-by-step explanation:

It is asking which is farthest from the ocean's surface, so we must use absolute value.

[tex] | - 22| = 22 \\ |48 | = 48 \\ | - 52| = 52\\ |19| = 19[/tex]

52 is greater than the others. therefore the farthest away.

c/- 4 = 16
please help

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C=-64

Multiple the equation by -4

neeed help on this !!!!!!!!!!!!!

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Answer:

5 minutes.

Step-by-step explanation:

what is 2.5% as a feaction and a decimal

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the answer is 2 1/2

In the figure MN is a midsegment of JKL. Find the value of X

Answers

Answer:

x = 9

Step-by-step explanation:

Here, we want to find the value of x

To do this, we are going to use the similar triangles principle

When two triangles are similar, the ratio of their corresponding sides are the same

The two similar triangles we shall be using are;

LMN and LJK

Thus, we have it that;

x/8.5 = x+ 9/17

17x = 8.5(x + 9)

17x = 8.5x + 76.5

17x - 8.5x = 76.5

8.5x = 76.5

x = 76.5/8.5

x = 9

x 7 9 11 13 y -1 2 5 8 Is the relationship linear, exponential, or neither

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15 is the answer hope this helps

Answer:

it is linear

Step-by-step explanation:

sorry if i'm late but i did it on khan

describe how you would write an equationof the line in ponit slope form that goes through the points (3,-5) and (-2,10)
Please help guys <3

Answers

Answer:

10-(-5)= m(-2-3)

Step-by-step explanation:

The equation for point slope form is y- y1= m (x- x1)

You would plug in the numbers so y = y coordinate of second point which the second point is (-2,10). The y coordinate is 10. Then, since y1 = y coordinate of the first point the first point being (3,-5), the y1 is -5. You do the same thing with x and x1 being -2 and 3. So the equation should look like this:

10-(-5)= m(-2-3)

That's the answer. I hope this helps!

What is the solution to this equation?
-16x= 80
O A. x= -96
O B. x= 96
O C. x = 5
O D. x= -5

Answers

D
Divide both sides by -16 to isolate the x.
80/-16= -5

D, you have to divide -16x by itself and 80. 2 negatives make a positive and one positive and one negative make a negative

What is the answer for. 49x^2-25y

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are you sure those are all numbers?

Please help me out I am doing this for math and has no clue what to do

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from the three options i can see, i would pick option B.

Find the missing sides of each triangle

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Hi I can help you but I need a bit more information are you adding are you subtracting are you Multiplying

Find the geometric mean of the numbers. If necessary, give the answer in simplest radical form.
7 and 28

Answers

Answer:

14 = x

Step-by-step explanation:

Jada was solving the equation
6
−
x
=
−
16
6−x

=−16. She was about to square each side, but then she realized she could give an answer without doing any algebra. What did she realize?

Answers

The solution Jada seeks does not require any algebra but can be solved to give; x = 22.

How to solve the equation

When solving the given equation;

6 - x = -16

The solution of the equation can be obtained by subtracting 6 from both sides of the equation so that we have;

-x = -16 -6

-x = -22.

Therefore, the value of x is; 22

Answers

¹⁶/₅ or 3 ¹/₅ or 3.2 ounces.

15 x 3/5 = 9

15 - 9 =
6 ounces

Riley has $14 more than Ashton. Peyton has twice as much money as Riley. If Ashton has m dollars, which expression represents the amount of money that Peyton has?

Answers

Answer:

14 times 2

Step-by-step explanation:

2(m+14) because I got big brains trust me

Noah has a coupon for 30% off at his favorite clothing store . He uses it to buy a hoodie . The regular price of a hoodie is $27. What did Noah pay for the hoodie?

Answers

Answer:

$18.90

Step-by-step explanation:

The way to do percentages is actually pretty easy.

since it's taking 30% of you are left with 70%. Take 70 and divide it by 100. This gives you .70

Now what you do is you take the price of the time and multiply it by the .70

So 27.00 * .7 = 18.90

So Noah paid 18.90

Other Questions

Simplify: 5a + 1r + 2a + 4r Prompt #1 - Write about yourself, your family, your school, etc. What is 11/2 subtracted by 11/3 biologists knew that South America and Africa contained similar fossils. These fossils led them to believe that a temporary land bridge between South America and Africa allowed ancient species move between both continents. In the twentieth century, evidence showed that South America and Africa were once part of the same larger continent and that there were no land bridges between them How should ologists respond to the new geological finding? 0 Biologists should reject the geological finding, because it is new. Biologists should ask physicists what to do, because physics is a more exact science Biologists should reject the belief in ancient species, because there were no land bridges. Biologists should update the history of life, because it should include the new geological finding Next 3:12 PM 2/10/2021 2 ^ Previous o B Type here to search A hockey puck with mass 0.30 kg is sliding along the ice with initial speed of 12.68 m/s. A hockey player is heading toward the puck with his stick in hand. After the player strikes the puck, the puck reverses its direction and is traveling at double its speed before the strike. If the collision occurs in 0.05 s, what is the magnitude of the force the hockey player's stick applied to the puck please help if you can!why do you think a temple was built honoring Confucius hundreds of years after the philosopher's death? The author presents information using a chronological structure in paragraph 2 and a compare/contrast structure in paragraph 3.Are these structures effective in supporting the author's thesis that musicians have used many keyboard instruments throughout history?01. No, because only the chronological section supports the thesis. It shows the promirance of several instruments, while thecompare contrast section focuses primarily on the differences between the two.02. No, because only the compare contrast section supports the thesis. It describes how the keyboard instruments were alike, while thechronological section merely lists popular instruments.03. Yes, both structures support the thesis. The chronological section explains how keyboard instruments developed over time, and thecompare contrast section places them into distinct categories.4. Yes, both structures support the thesis. The chronological section provides interesting details about the piano, and thecompare contrast section emphasizes similarities between the piano and the harpsichord. help lol the primary responsibility of the state legislative branch is to Susie ordered her sister a get well card from a company that randomly selects a card from their inventory. The company has 50 total cards in inventory. 10 of those cards are get well cards.What is P(Not a get well card)?Please help ASAP!!! You invest some money made a profit of $75. Your profit was 10% of your investment. How much did you invest originally? Sarah can run 5 miles in 60 minutes. Find Sarahs speed in minutes per mile. Part B which evidence further develops the effect indicated by the answer of part A?A.The negative imagery of famine plague in earth (line16)B.The trip rhyme of "soil" "toil" and "oil" (lines 21-23)C.The use of assonance with "seed" and "reap" (line 22)D. The repetition of the word "surely" (line 27) Kenneth is an employee at ups and is required to be able to lift up to 50lbs one day he was playing basketball with his friends and injured his back he has been experiencing severe back pain at work and has not been able to lift anything while at work so ups terminated him Did the UPS act legally explain? (MIDDLE SCHOOL MATH) please help! How would you find the following shapes volume? which layer of Earth has the most mass? A*the crust B the mantle C the inner core D the outer core comparing functions worksheet how do i answer this question What type of mutation occurs when part of a chromosome is missing after replication? Use the relationship between the angles in the figure to answer the question.Which equation can be used to find the value of x?Drag and drop the equation into the box.