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kobusy [5.1K]
3 years ago
8

Simplify the expression –4(x – 7) + 3(x + 9). Show All Your Work

Mathematics
2 answers:
dolphi86 [110]3 years ago
6 0
-4 times x is=-4x
-4 times -7 is=28
3 times x is = 3x
3 times 9 is = 27 
-4x+28+3x+27
it needs to be simplified so ur answer is 
-1x+55 
I think
asambeis [7]3 years ago
5 0
First distribute the -4 and 3, then combine like terms

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Rectangle
Luba_88 [7]

Answer:

(x, y) -- [X-4, Y+6]

6 0
3 years ago
Astore pays $927.40 for a water heater and marks the price up by 5%. What is the new price?
Slav-nsk [51]

Answer:

$973.77

Step-by-step explanation:

$927.40 = 100%

New price = 100% + 5%

New price = 105% of 927.40

105% of 927.40 = 1.05(927.40)

1.05(927.40) = 973.77

-Chetan K

8 0
3 years ago
Y is directly proportional to x. when x = 8, y = 20. determine the value of y when x = 3​
wolverine [178]

Step-by-step explanation:

y is directly proportional to x

y = kx

k represents the constant of proportionality.

when y = 20 and x = 8:

20 = 8k

Dividing both sides by 8 gives:

k = 2.5

Hence when x = 3.

y = 2.5(3)

y = 7.5 .

4 0
3 years ago
Harper's house is 30 feet wide and 45 feet long. On a scale drawing, the house is 4 inches wide and 6 inches long, and Harper's
Vsevolod [243]
The scale factor is 7.5 because if you divide 30 by 4 and 45 by 6, it is 7.5.
So to find the actual measurement of Harper's bedroom, you multiply 1.2 by 7.5, that would be 9 feet wide, and 1.6 by 7.5, that would be 12 feet long.

9 feet wide, 12 feet long
8 0
3 years ago
Read 2 more answers
Here is a list of ingredients to make biscuits.
Stels [109]

Answer:

50 g butter

45 g caster sugar

5 g chocolate chips

Step-by-step explanation:

First do 300 over 400 and you will get 1/4. That means he used 1/4 less of his ingredients. So you multiply everything by 1/4 and you will get 50 g of butter, 45 g of caster sugar, and 5 g of chocolate chips. If my explanation is not clear enough, there is work to show you the step.

3 0
3 years ago
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