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Related Questions
Carmine pain an electrician x dollars per hour for a 5 hour job plus 70 for parts. The total charge was 320 which equation can be used to determine how much do electrician charge per hour
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Answer:
5x + 70 = 320
Step-by-step explanation:
We know that Carmine paid an electrician a certain amount per hour, we also know that they worked for 5 hours. Therefore we have 5x.
He also got paid 70 for parts, meaning an extra $70
And we know that we have the total charge and that the main point of this question is to determine how much the electrician was paid per hour.
Therefore :
5x + 70 = 320
What variable do you eliminate?
4x + 8y = 20
-4x + 2y = -30
x because they have opposite signs
O
O
y because they don't have opposite signs
x but you have to multiply the top equation by 2, and the bottom equation by -2
O y but you
y but you have to multiply the bottom equation by 4
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Hope this helps :3
please help and show work
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Step-by-step explanation:
sides opposite to equal angles are equal in length :
angle45 = angle 45
r = s
by Pythagoras theorem :
r² + s² = (9√2 )²
s²+s²= 9 × 9 × 2
2s²= 9× 9×2
s²= 9 × 9
s= √9× 9
s = 9
r= s = 9 units .
plz mark my answer as brainlist plzzzz hope this will be helpful to you.
Expand.If necessary, combine like terms (2x-3)(2x-3)
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The expression (2x-3)(2x-3) can be written as (2x-3)² or 4x² - 12x + 9 after expanding by using the identity (a - b)² = a² -2ab + b²
What is an expression?It is defined as the combination of constants and variables with mathematical operators.
We have given an expression:
= (2x-3)(2x-3)
After multiplication:
= (2x-3)²
We can also expand the above expression by using the identity:
(a - b)² = a² -2ab + b²
= 4x² - 12x + 9
Thus, the expression (2x-3)(2x-3) can be written as (2x-3)² or 4x² - 12x + 9 after expanding by using the identity (a - b)² = a² -2ab + b²
Learn more about the expression here:
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I need some help with this problem
Answers
Answer:
B
Step-by-step explanation:
15x + 3x + 19 = -17
18x + 19 = -17
18x = -36
x = -2
Determine when domain increases
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Answer:
Step-by-step explanation:
[0,7)
because the dot is colored in you need to have the bracket
if Nandi and thabo share R15,00 in the ratio 1:2 how many rands does each get
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Answer:
[tex]\boxed{\textsf{ The amount shared by Nandi is \textbf{ Rs 500. }.}}[/tex]
[tex]\boxed{\textsf{ The amount shared by Thabo is \textbf{ Rs 1,000. }.}}[/tex]
Step-by-step explanation:
Given that Nandini and Thabo share Rs 1500 in the ratio 1:2 . And we need to find how much each gets . So lets take the given ratio be 1x :2x . Now here we can find the share of both as ,
[tex]\qquad\boxed{\boxed{\sf Share =\dfrac{ Ratio \ number }{Sum \ of\ ratio\ nos. }\times Amount }}[/tex]
Hence here the sum of ratio numbers would be 1+2 = 3 . Here the ratio number of Nandi is 1 and that of Thaboo is 2 . So ,
Share of Nandi :-
[tex]\sf\implies Share =\dfrac{ Ratio \ number }{Sum\ of\ ratio\ nos. }\times Amount \\\\\sf\implies Share_{(Nandi)}= \dfrac{1}{1+2}\times Rs\ 1,500 \\\\\sf\implies Share_{(Nandi)}= \dfrac{1}{3}\times Rs\ 1,500 \\\\\sf\implies \boxed{\pink{\frak{ Share_{(Nandi)}= Rs\ 500 }}}[/tex]
[tex]\rule{200}2[/tex]
Share of Thabo :-
[tex]\sf\implies Share =\dfrac{ Ratio \ number }{Sum\ of\ ratio\ nos. }\times Amount \\\\\sf\implies Share_{(Thabo)}= \dfrac{2}{1+2}\times Rs\ 1,500 \\\\\sf\implies Share_{(Thabo)}= \dfrac{2}{3}\times Rs\ 1,500 \\\\\sf\implies \boxed{\pink{\frak{ Share_{(Thabo)}= Rs\ 1,000 }}}[/tex]
if chloe has 19 pets and 18 ran away and she got 198 new pets how much pets dose she have
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Answer:
199
Step-by-step explanation:
(Multiple choice/ Brainliest will be rewarded)
I’d like some help on this question.
(Zoom in if needed)
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Bacteria A has a growth rate of 0.68% per minute. Bacteria B has a growth rate of 0.012% per second. Determine which bacterium has a faster growth rate. Explain.
can someone help me with this
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Answer:
bacteria A
Step-by-step explanation:it is growing at a faster rate
Answer: Bacteria A
Step-by-step explanation:
becasue the growth rate of bacteria a is growing faster than b
You run 1/12 mile in 1/2 minute. How many miles per hour do you run?
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Answer:
10
Step-by-step explanation:
1/12 times 2 would be 1/6 miles per minute, so times that by 6 and it takes 6 minutes to run 1 mile. 60 minutes divided by 6 equals 10 miles per hour. Sorry if thats confusing
What is the areas of triangle
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135 is the answer hope this helps
A prize is divided in the ratio 2:5
If the smaller share is £50 what is
the larger share?
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Answer:
125
Step-by-step explanation:
2:5
50: ?
50 divided by 2 = 25
25 times 5 is = ?
50:125
di sure kung tama ^^
find the missing angle
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Answer:
The missing angle is 109°
Solve the equation. -8z+ 8 + 6z = -3z+ 13
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Answer:
im sorry i need points
Step-by-step explanation:
Answer: z=5
Step-by-step explanation:
Simplify the expression.
(5-1) + (-5-i)
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Answer:
4+(-5-i)
Step-by-step explanation:
what is "i"?
I just need someone to help me with the third one I already did the other two, I will give brainliest
Answers
Answer:
the solution to the equation is 5
Answer:
n = 5
Step-by-step explanation:
We can substitute n for 5 in the equation to check and see if it is true.
2(5) - 3 = 7
10 - 3 = 7
hope this helps :)
1.)What is 74% of 44?
2.)105 is 42% of what number
3.)37% of what number is 19
4.)what is 8% of 83
5.)what % of 369 is 29
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Answer:
Step-by-step explanation:
1.)What is 74% of 44? : 32.56
2.)105 is 42% of what number : 250
3.)37% of what number is 19 : 51
4.)what is 8% of 83 : 6.64
5.)what % of 369 is 29: 0.07%
Owen follows the rule divide by 2 to write the patteren below. He will write two more numbers to complete the pattern. which statement is true
800,400,200,100
A Every number in the pattern will have a 0 in its 10 place
B Every number in the patteren will have a 0 in its ones place
C Every number in the pattern will have a 0 or a 5 in its tens place
D Every number in the pattern will have a 0 or a 5 in its ones place
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Answer:
None of these sound correct but I would say D
Step-by-step explanation:
answer quick please !!
Answers
Answer:
8
Step-by-step explanation:
Answer:
36 units²
Step-by-step explanation:
I used the triangles' area to find the area of the quadrilateral. The area of a triangle is 1/2 x base x height. The top triangle is 1/2 x 5 x 10 or 25. The bottom triangle is 1/2 x 2 x 11 or 11. Add 25 + 11 to get the total area.
Hope it helps!
Each square below represents one whole.
What percent is represented by the shaded area?
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Answer:
33.333% repeating, the 3 after the decimal repeats
sarah says the two expressions 3(2+x) and 6+3x are equivalent is she right ?
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Answer:
Yes
Step-by-step explanation:
She just distributed the 3 to the (2+x). If you multiple each by 3, you'll get 6+3x.
Answer:
Yes
Step-by-step explanation:
3 and 6 are multiples so yes they are equivalent
find the measure of a regular 45 agon
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Answer:
172 degrees
Step-by-step explanation:
explanatory: yes the person correct
What number is equivalent to 7/15
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Answer:
0.5385
-or-
7/13, 14/26, 21/39, 28/52, 35/65, 42/78, 49/91, 56/104, 63/117, 70/130, 77/143, 84/156
Answer:
14/30
Step-by-step explanation:
You just have to multiply the denominator (bottom number) and the numerator (top number) by the same number or dived both numbers.
What is y = mx + b mean for functions
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Answer:
Slope-Intercept Form. A function whose graph is a line or a part of a line is called a linear function. In general, a linear function is a function that can be represented by an equation in the form y = mx + b. The form y = mx + b, or f(x) = mx + b, is called the slope-intercept form of a linear equation
Step-by-step explanation:
hope this help:))
The answer to the problem
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================================================
Apply the slope formula
m = (y2-y1)/(x2-x1)
m = (8-6)/(2-5)
m = (2)/(-3)
m = -2/3
As you can see, we subtract the y coordinates together. We also subtract the x values together in the same order. If the order is mixed up, then you'll get the wrong sign for the final answer.
The slope is equal to rise over run. Think of "rise" as "change in y", which explains the difference in y values. The run is equal to the change in x, which is the difference in x values.
Find the measure of the missing angle.
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Answer: 35 degrees
Step-by-step explanation:
A triangle always adds up to 180 degrees
? + 125 + 20 = 180
? + 145 = 180
? = 35
-3x = 12
i really need to know this for my math exam
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Answer:
x = -4
Step-by-step explanation:
[tex] - 3x = 12[/tex]
Lets divide both the sides by -3.
[tex] = > \frac{ - 3x}{ - 3} = \frac{12}{ - 3} [/tex]
[tex] = > x = - 4[/tex]
x= -4
-3x=12
divide x by -3 and do the same on the other side
12÷(-3)= -4
hence, x= -4
if you want to check if something is right, substitute your answer into the question
hope this helped
how do you solve this problem?
4^x=3x/2+5
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Answer: [tex]{ x = 3.33}{}\\\\\end{array}\right] }[/tex]
Explanation: Hello , Solve for x by simplifying both sides of the equation, then isolating the variable.
I hope this helps!
A shelf measures 720 mm long.
a) How many centimetres long is the shelf?
b) How many metres long is the shelf?
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b) 0.72 m
10mm = 1cm
100cm = 1m
a) The length of shelf in centimeters is 72 cm
b) The length of shelf in metres is 0.72 m.
What is Unit Conversion?The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometres, feet, or any other measurement unit instead of miles.
Given:
A shelf measures 720 mm long.
a) As 1 cm = 10 mm
So, the length of shelf in centimeters
= 720 /10
= 72 cm
b) As 1 m = 1000 mm
So, the length of shelf in meters
= 720 /1000
= 0.72 m
Learn more about Unit Conversion here:
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