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3 years ago

13

How can 3,5,6, and 7 make 75 using parentheses

1 answer:

galben [10]3 years ago

4 0

6(7+5) + 3
Hope this helps :)

To check:
PEMDAS
7+5 is 12
6(12) + 3
72 + 3
75

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bazaltina [42]

Infinite solutions (extra characters)

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3 years ago

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6% sales tax on a $69.50 watch

-Dominant- [34]

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31)The scale on a map shows that 5 centimeters = 2 kilometers.

Sonbull [250]

Answer:

13.5 cm

Step-by-step explanation:

if 5 cm is 2 km, then 10 cm is 4 km. To find one km you do half of 5 cm. which is 3.5 cm. So 10+3.5=13.5

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3 years ago

A line passes through the points (2,21) and (8,27). Write a linear function rule in terms of x and y for

tatiyna

We have two points so we can find the gradient using y1-y2/x1-x2
gradient = 21-27/2-8
= 1
we know the form for any linear equation is y = mx + c
we have m and a point so we can substitute in point (2,21) to find c
21 = 1 x 2 + c
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6 0

2 years ago

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What is the solution for the =.

liq [111]

Answer:

solution for n is $\frac{-13}{4}$

Step-by-step explanation:

Given an equation containing one variable n.

The equation is as follows:

$\frac{-5}{2} =\frac{3}{4} +n$

To solve for n we can subtract 3/4 from both the sides

The result is

$\frac{-5}{2} -\frac{3}{4} =n\\Take LCD as 4\\\\frac{-10-3}{4} =n$

Verify:

Substitute the answer in the given equation.

$\frac{-5}{2} =\frac{3}{4} -(\frac{13}{4} )$

Both sides equal thus proving our correctness of answer.

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3 years ago