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ikadub [295]
4 years ago
15

Simplify the expression using properties of operations. 5(x−4)+2x

Mathematics
1 answer:
Elena-2011 [213]4 years ago
7 0
1st: 5x-20+2x (distribute the 5 to the numbers in the parenthesis) distribution property

2nd: 7x-20 (add like terms aka 5x and 2x) I believe commutative property of addition

Finished!
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Which computation should be done last 2x9 -3x5+4?
SVETLANKA909090 [29]
2 x 9 - 3 x 5 + 4

In math/s we have the rule called BEDMAS
(a.k.a. BODMAS, BIDMAS, PEDMAS, etc)

Brackets
Exponent
Division
Multiplication
Addition
Subtraction

We go from top to bottom of the list of rules for every math equation. There’s just one exception, addition and subtraction are treated equally, and so when we have an equation with just addition and subtraction, we work left to right

2 x 9 - 3 x 5 + 4

We have no brackets and no exponents, and there’s nothing to divide.
So, we do multiplication
18 - 15 + 4

If you remember, addition and subtraction are treated the same. Therefore, we work left to right.
18 - 15 + 4 = 7

You can type your question into goorgle or a calculator, and you’ll get 7!
5 0
2 years ago
You're trying to enlarge an image that is 4 centimeters tall and 10 centimeters wide onto a billboard that is 3 meters tall and
Norma-Jean [14]

The height scale is 75

Step-by-step explanation:

The height scale is the ratio between the height of the final image and the height of the original image.

In this problem, we have:

y = 4 cm (height of the original image)

Converted into meters,

y=0.04 m

y'=3 m (height of the enlarged image)

Therefore, the height scale is given by the following ratio:

r=\frac{3 m}{0.04 m}=75

So, the height scale is 75.

Learn more about scales:

brainly.com/question/570757

#LearnwithBrainly

4 0
4 years ago
Calculate the volume of this triangular prism?
BabaBlast [244]

Answer:

960 sq cm

Step-by-step explanation:

(16*12*10)/2

4 0
3 years ago
300000÷_________=300.
Zolol [24]

Answer:

1000

Step-by-step explanation:

7 0
3 years ago
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Natasha is planning a school celebration and wants to have live music and food for everyone who attends. She has found a band th
spin [16.1K]
Multiply 2.25 by each answer and 750 and write down the total next multiply 3.25 by each answer lowest to highest once you get a product that is higher than you writen down answer play around with the numbers until you get the exact amount D 760 2.25 times 760 is 2460 by 3.25 its 2570 you save 10 dalloars and are able to pay for the food and band
7 0
3 years ago
Read 2 more answers
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