3 years ago

The figure shows two triangles on the coordinate grid:

Mathematics

1 answer:

inna [77]3 years ago

3 0

Answer:A

Step-by-step explanation:

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What is the value of y in the equation y − 7 = 21? (4 points)

liq [111]

Answer:

D. 21

Step-by-step explanation:

28-21=7

28-7=21

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4 years ago

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10.95 rounded to the nearest tenth

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11.0 or 11

Step-by-step explanation:

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To graph the equation 2x + 5y = 10, Zeplyn draws a line through the points (5, 0) and (0, 2). What is the slope of the line repr

scoray [572]

Answer:

negative StartFraction 2 Over 5 EndFraction

Step-by-step explanation:

2x +5y = 10

5y = - 2x + 10

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3 years ago

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Work out the area of a rectangle with base, b = 34mm and perimeter, P = 82mm.

Karo-lina-s [1.5K]

Answer:

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A student earned a grade of 60% on a math test that had 30 problems. How many problems on this test did the student answer corre

Free_Kalibri [48]

Answer:

The student answered 18 problem correctly.

Step-by-step explanation:

We can find the number of problems answered correctly out of a test that had 30 problems by setting up equivalent fractions, or a proportion:

$\frac{60}{100}=\frac{x}{30}$

'x' is equal to the number of problems answered correctly. Since 60% is the number answered correctly and 100% is the total amount, we can compare 60% to 'x' and 100% to 30. In order to solve for 'x', we can cross-multiply and divide:

100x = (60)(3) or 100x = 180

Divide both sides by 100: $\frac{100x}{100}=\frac{180}{100}$

x = 18

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3 years ago