3 years ago

Subtract the quotient of 15 divided by 4 from the sum 33 and 7

Mathematics

1 answer:

weeeeeb [17]3 years ago

5 0

33+7-15/4
=40-3.75
=36.25

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The price of a cup coffee was 2.40 yesterday. Today, the price fell to 2.15 find the percentage decrease. Round the answer to th

irakobra [83]

ANSWER

The percentage decrease is 10.4%.

EXPLANATION

To calculate percentage decrease, use the formula,

Percentage decrease

$= \frac{new \: price - old \: price}{old \: price} \times 100\%$

Yesterday the price of coffee was 2.40. This is the old price.

Today the price is 2.15. This is the new price.

$= \frac{2.15 - 2.40}{2.40} \times 100\%$

$= \frac{ - 0.25}{2.40} \times 100\%$

$= - 0. 10416667 \times 100\%$

$= - 10.416667\%$

To the nearest tenth, we have:

$- 10.4\%$

Therefore the percentage decrease is 10.4%.

8 0

3 years ago

Evaluate -x - y when x = -12 and y = 2

xz_007 [3.2K]

Answer:

-14

Step-by-step explanation:

subtract

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3 years ago

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The slope of the line whose equation is given

Mrac [35]

The slope is 9
whatever is in front of x = the slope

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4 years ago

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Determine if true:<br> 1y+8y+10y=20y

diamong [38]

Answer:

False

Step-by-step explanation:

1+8=9

9+10=19

1y+8y=9y

9y+10y=19y

19y=20y

The equations dont match.

Hence, the equation is false.

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2 years ago

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If f(x)=-8x+8 and g(x) = sqrt x-9 what is (f•g)(18)

Serggg [28]

Answer:

-16

Step-by-step explanation:

f(x)=-8x+8 and g(x) = sqrt x-9

(f•g)(18)=f(g(18))

g(18)=sqrt(18-9)=sqrt9=3

f(3)=-24+8=-16

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3 years ago