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4 years ago

PLEASE ANSWER I WILL MARK BRAINLIST

Mathematics

2 answers:

Charra [1.4K]4 years ago

5 0

Answer:

1.1/8

2.because multiply the numerator by the reciprocal of the denominator

Step-by-step explanation:

Inga [223]4 years ago

5 0

i think the answer is 4 x 2. i hope its right

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Alenkasestr [34]

When you take any polynomial and subtract any other polynomial from it you always get a third polynomial that is the closure property

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3 years ago

Solve algebraic equation -4x + 7 = 15

yan [13]

Answer:

x=-2

Step-by-step explanation

-4(-2)+ 7

8+7=5

3 0

4 years ago

Read 2 more answers

0.15(y-0.2)=2-0.5(1-y) The answer is -153/35 I just need to know how to get that

butalik [34]

Answer:

$y=-\dfrac{153}{35}$ .

Step-by-step explanation:

The given equation is

$0.15(y-0.2)=2-0.5(1-y)$

Using distributive property, we get

$0.15(y)+0.15(-0.2)=2-0.5(1)-0.5(-y)$

$0.15y-0.03=2-0.5+0.5y$

$0.15y-0.03=1.5+0.5y$

Isolate variable terms.

$0.15y-0.5y=1.5+0.03$

$-0.35y=1.53$

Divide both sides by -0.35.

$y=\dfrac{1.53}{-0.35}$

$y=-\dfrac{1.53}{0.35}\times \dfrac{100}{100}$

$y=-\dfrac{153}{35}$

Therefore, $y=-\dfrac{153}{35}$ .

6 0

3 years ago

Mary mixes white paint and blue paint in the ratio 2:3

Sedbober [7]

Given:

Ratio of white and blue paint is 2:3

Total quantity of paint is 20 litres

To find:

Quantity of blue paint to be mixed so that the ratio of white paint to blue paint becomes 1:7

Solution:

The ratio 2:3 totals 20 that is $2x+3x=20\rightarrow5x=20\rightarrow x=4$

So, the quantity of white paint in the mixture is $2\times4=8$ and the quantity of blue paint in the mixture is $3\times4=12$

Now, to get the final ratio as 1:7, Mary should have $7\times8=56 \text{ litres }$ of blue paint. So, she need to add $56-12=44 \text{ litres}$ .

Therefore, Mary has to add 44 litres of blue paint to the mixture to make the ratio as 1:7.

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3 years ago

Plsssssssssss help me!!! I’m not good at algebra!!

Elza [17]

Answer:

x=50

Step-by-step explanation:

This is a vertical angle, so the angle on top and the bottom are equal

[2(x+10)]=3x-30

2(x+10)=3x-30

2x+20=3x-30

50=x

8 0

3 years ago