Answer:
I disagree with both solutions. The value of b that will make the expression correct is -30
Step-by-step explanation:
Given the equation solved my Mai and Tyler expressed as:
2/5 b + 1 = -11
We are to check the veracity of the solutions;
2/5 b + 1 = -11
Subtract 1 from both sides of the expression
2/5 b + 1 -1 = -11-1
2/5 b = -12
Cross multiply
2b = -12 * 5
2b = -60
Divide both sides by 2
2b/2 = -60/2
b = -30
Since the solution b = -25 and -28 does not tally with the gotten solution, I disagree with the both solutions
A diver is 4 meters below sea level. What integer represents the location of the diver?
Answer:
-4
Step-by-step explanation:
When talking about integers key words like below or anything being Loss means Negative.And anything relating to an positive like above or receive means positive which means anything that your gaining or getting.
Toben bought 512 pounds of chicken, which cost $3.50 per pound. What was the total cost of the chicken?
Answer:
$1792
Step-by-step explanation:
512 x 3.50 = $1792
Answer:
$1792
Step-by-step explanation:
512 * $3.50 = $1792
X = [ ? ]
BRAINLEST to whoever is right!!
Answer:
x=125
Step-by-step explanation:
all angles of a triangle add up to 180 degrees.
30+25=55
180-55=125
Probability
Help me with this one plzzz
Answer:
a. 5/10 = 50%
b. likelihood you'll draw a card with a B on it
I'm not sure about c.
how many ducks are left if they started with 8 and 3 ran away?
Answer:
5?xd
Step-by-step explanation:
Alia made a scale drawing of a square park, which has a side length of 30 feet. She used the scale 3 centimeter = 5 feet. What will be the area of the scale drawing?
Answer:
324cm²Step-by-step explanation:
Given the scale conversion;
3 centimeter = 5 feet
x = 30 feet
Cross multiply
5x = 3 * 30
5x = 90
x = 90/5
x = 18cm
Hence the side length in cm is 18cm
Area of the square = L²
Area of the square = 18²
Area of the square = 324cm²
Hence the area of the scale drawing is 324cm²
Andy drove from his home to his sisters house he stayed at her house and then drove back home. please help ASAP
Answer:
a) 45 minutes
b) 100 km/hr
Step-by-step explanation:
a) It is the length of the horizontal line in the graph. It extends from 14:45 to 15:30 and that is 45 minutes.
b) Andy travels 50 km in 30 minutes (=0.5 hr), that's 50/0.5 = 100 km/hr.
As per linear equation, Andy stayed his sisters house for 45 minutes.
The average speed on his journey home is 100 km/hour.
What is a linear equation?"An equation that has the highest degree of 1 is known as a linear equation. This means that no variable in a linear equation has an exponent more than 1. The graph of a linear equation always forms a straight line."
As per the graph, Andy drove from his home to his sisters house.
Then he rested for a while there.
After that, he returned back to his home.
It is clear from the graph that, Andy stayed his sisters house
= (15:30 - 14:45) hours = 45 minutes
Again, from the graph, the distance between Andy and his sister's house is 50 k.m.
Andy return back to his home in
(16:00 - 15:30) hours
= 30 minutes
= 0.5 hours
Therefore, the average speed on his journey home is
[tex]= \frac{50}{0.5} km/hour\\= 100 km/hour[/tex]
Learn more about a linear equation here: https://brainly.com/question/11897796
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Vector works the same number of hours every week. He worked a total of 532.5 hours in the last 15 weeks. How many hours did he work in one week?
Answer
35.5 hours per week
Step-by-step explanation:
532.5/15=35.5
therefore 35 and half a hour per week
Use ruler and compasses to draw a line which is
perpendicular to line AB at point C.
Answer:
Draw a line that crosses point C so when it crosses AB it forms two 90 degree angles
Step-by-step explanation:
Nat is thinking of a four-digit counting number. The thousands digit and the hundreds digit are the same. The sum of all 4 digits is 28. The four-digit number is an odd multiple of 5. Exactly two digits are even. What is Nat’s number?
We want to use the given information to find a 4-digit number.
We will get the number: 8,875
----------------------------
A general 4-digit number can be written as:
a*1,000 + b*100 + c*10 + d
Where a, b, c, and d are whole numbers between [0, 9].
We also know that:
"The thousands digit (a) and the hundreds digit (b) are the same"
a = b.
"The sum of all 4 digits is 28"
a + b + c + d = 28
"The 4-digit number is an odd multiple of 5"
All the multiples of 5 end with a 0 or a 5, this is an odd one, so it must end with a 5, then we know that:
d = 5
"Two of the digits are even".
Ok, now let's write the equations that we found
a = b
a + b + c + d = 28
d = 5
Because of the last statement, only two digits are even, and we have that a is equal to b, the two even numbers must be these two, then we know that:
a is even.
And from the first equation, we can rewrite the second one as:
a + a + c + d = 28
Using the third equation and replacing it here, we have:
a + a + c + 5 = 28
2*a + c = 23
Now we can try to input different values of a in the equation, and see what value of c we get:
if a = 2, then:
2*2 + c = 23
4 + c = 23
c = 23 - 4 = 19
But c can be, at max, 9, then we can discard this.
Now let's try with a larger value for a, this time a = 8.
2*8 + c = 23
16 + c = 23
c = 23 - 16 = 7
c = 7
This is correct, then we can conclude that:
a = 8b = 8c = 7d = 5Then the 4-digit number is:
8,875
If you want to learn more, you can read:
https://brainly.com/question/13163346
which expression is equivalent to 4 - (-7)
Answer:
4 + 7
(also 11)
Step-by-step explanation:
Answer:
7+4 or 11
Step-by-step explanation:
7+4 since 4-(-7) makes a mega plus.
This table shows a proportional relationship between the number of cups of lemonade and strawberry juice used for
strawberry lemonade.
Cups of
Lemonade
Cups of
Strawberry
juice
1
3
4
12
21
Enter the number of cups of lemonade used for 1 cup of strawberry juice.
cups
Answer:
number of cups of lemonade used = 1/3 cups
Step-by-step explanation:
number of cups of lemonade : strawberry juice
= 1 : 3
Enter the number of cups of lemonade used for 1 cup of strawberry juice.
Let
x = number of cups of lemonade used
number of cups of lemonade : strawberry juice
= x : 1
Equate both ratios to get x
1 : 3 = x : 1
1/3 = x / 1
Cross product
1*1 = 3 * x
1 = 3x
Divide both sides by 3
x = 1/3 cu
number of cups of lemonade used = 1/3 cups
2x+3y=780
What is x?
What is y?
Answer:
x = 330 and y = 40
Step-by-step explanation:
if y varies directly with x and y is 12 when x is 9 what is x when y is 4
Answer:
X is 3 when Y is 4.
So, the required value [tex]x[/tex] is 3.
Proportional:Properly related in size, degree, or other measurable characteristics; corresponding: Punishment ought to be proportional to the crime. 3. Mathematics Having the same or a constant ratio.
The first part is y varies directly with x then,
[tex]y \propto x\\y=kx[/tex]... (1) where k is proportional constant
Now, substituting [tex]y=12, x=9[/tex] in equation (1) we get,
[tex]12=9k\\k=\frac{4}{3}[/tex]
Substituting [tex]k=\frac{4}{3}[/tex] in equation (1) with [tex]y=4[/tex] then,
[tex]4=(\frac{4}{3})x\\ x=3[/tex]
Learn more about the topic Proportional:
https://brainly.com/question/25633806
Determine the sign of each product and place it in the correct category
Answer:
sorry i had too
Step-by-step explanation:
someone passed this to me) 90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you
Eric had to put together the metal frame of a bed. On the instructions, the length
of the frame was shown as 4 inches. If a scale factor of 1 inch = 1.6 feet was used
on the instructions, what was the actual length of the metal bed frame? How do
you know?
Answer:
The answer is 6.4. And i know because 4x1.6=6.4
Currently, professional men's basketball players score an average of 18.2 points per game with a standard deviation of 4.5 points. The current top-scoring professional basketball player scores an average of 36.2 points per game. In one season in the 1990s, professional basketball players averaged 13.2 points per game with a standard deviation of 3.7 points. The top-scoring professional basketball player averaged 30.1 points per game. Which player did better relative to his peers?
Answer:
The 1990s basketball player did better than the current basketball player because his z-score is higher.
Step-by-step explanation:
i just took the test
Find the focus, this looks different from the other ones I’ve done which is why I am confused
Answer:
Graph the parabola using the direction, vertex, focus, and axis of symmetry.
Direction: Opens Up
Vertex: (0,0)(0,0)
Focus: (0,32)(0,32)
Axis of Symmetry: x=0x=0
Directrix: y=−32y=-32
xy−223−11600116223xy-223-11600116223
Step-by-step explanation:
please mark me as brainliest thank you
Answer:
A
(0, 3/2)
Step-by-step explanation
Drag each figure to show if it is similar to the figure shown or why it is not similar.
Answer:
1st one - not similar diff ratio
2nd- similar
3rd- not similar diff shape
4- not similar diff ratio
5- similar
6- not so sure but i would go w either not similar diff shape or similar
Step-by-step explanation:
Find the length of AC
B)
here,
A to B = 62
C To B = 11
A to C = ?
now,
so, 62 - 11 = 51
therefore a to C Is 51 cm
plz mark me brainliest ok
plz follow me
A)
Here,
A to B = 13
A to C = 26
total = ?
now,
A to B + A to C
13 + 26 = 39
Therefore,
total number is 39
Which angles are complementary to each other, will give brainliest
3 nd 4
Step-by-step explanation:
hope this helps
Please help, I need some urgently
Answer:
[tex] \angle DEC [/tex]
Step-by-step explanation:
[tex] \red{\bold {\angle DEC}} [/tex] is supplementary to[tex] \angle DEA [/tex]
Write a polynomial function in Intercept (factored) form that has the following zeroes.
3, -5, 2, -2
Answer:
f(x)＝(x-3)*(x+5)*(x-2)*(x+2)
x-2y=3
4x -8y = 12
Substitution
Answer:
Solution in photo
Step-by-step explanation:
carney needs $60 to buy her mother a gift. She has saved 25% of that amount so far. Bow much has she saved so far
Answer:
$15.00
Step-by-step explanation:
25% of anything means a quarter of that thing. (ie.1/4 of $60 which is $15).
OR
(25/100)*$60
0.25*60=$15
PLS HELP WILL MARK BRAINIEST
Answer my last question
geometry triangles
select all expressions whose value is negative
Answer:
"2 + 2(-3)(7) = negative
-2(27 ÷ 9)+4= negative
(14 ÷ -2)(-6)= positive
(4 - 10) - ( 8 ÷ ( -2))= negative
Step-by-step explanation:
2 + 2(-3)(7) = -40
-2(27 ÷ 9)+4= -2
(14 ÷ -2)(-6)= 42
(4 - 10) - ( 8 ÷ ( -2))= -2"
Sten had 12 apples.
He ate 5 of them.
He picked 3 more apples and gave all of the
apples to Granny.
How many apples did Sten give Granny?