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4 years ago

Please help! Simplify by combining like terms -5x - 13 + 7y +26x

Mathematics

2 answers:

baherus [9]4 years ago

6 0

21x + 7y -13 Im pretty sure this is right

Citrus2011 [14]4 years ago

3 0

Answer:

21x + 7y -13

Step-by-step explanation:

You just need to add -5x to 26x, which equals 21x.

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A store is having a sale where school suplies are 30% off their original price.A backpack is on sale for $11.20 What was the ori

Amiraneli [1.4K]

Answer:

$16

Step-by-step explanation:

If you received 30% off then you paid 70% of the price. To find the original price, write a proportion.

$\frac{70}{100}=\frac{11.20}{y}$

To solve cross multiply.

70y = 1120

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7 0

3 years ago

Y=-x^2-10x-16 on graph

lana [24]

Answer:

It is a Non-Linear graph:

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4 years ago

Lauren save $84 more than Fiona. 1 fifth Of Lauren's saving was the same as 3 eights of fiona's Saving. How much did Lauren and

muminat

Answer:

Lauren's saving=$180

Fiona's saving=$96

Step-by-step explanation:

Let the saving's of fiona be x

Now given that the savings of lauren is $84 more than fiona which means the saving's of lauren is x+84

Given 1 fifth Of Lauren's saving was the same as 3 eights of fiona's Saving

$\frac{1}{5}(lauren's saving)=\frac{3}{8}(fiona's saving)$

$\frac{1}{5}(x+84)=\frac{3}{8}(x)$

$8x+672=15x$

$7x=672\\x=96$

Therefore the saving's of fiona is $96 and the saving's of Lauren's is 96+84=$180

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3 years ago

The H.C.F of <br> 15 and 45

Jet001 [13]

9514 1404 393

Answer:

Step-by-step explanation:

When the smaller number is a divisor of the larger one, it is their highest common factor.

HCF(15, 45) = 15

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3 years ago

|x|-5 what does the vertical bar means?

Masja [62]

Answer:

it means absolute valuen so anything inside becomes a positve.

Step-by-step explanation:

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3 years ago