3 years ago

The 20% tip on a $42 meal

Mathematics

1 answer:

blondinia [14]3 years ago

3 0

Answer:

$8.4 hskshskshsjsjjsj

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Find the area of the rectangle

tia_tia [17]

Answer:

$\frac{6}{7} yd^{2}$

Step-by-step explanation:

Area is the width (6/7 yd) multiplied by the height (1 yd).

6/7 x 1 = 6/7 $yd^{2}$

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2 years ago

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The sum of two angles is 180 degrees and the angles have a ratio of 7:8. What is the number of degrees in the smaller angle?

Gwar [14]

7 > 8

7 + 8 = 15

180 / 15 = 12

12 * 7 = 84

Therefore the smallest angle is 84 degrees

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4 years ago

What is 9/45 divided by 7/42

Brrunno [24]

$first\ sipmlify\ the\ 
fractions:\\\dfrac{9}{45}=\dfrac{9:9}{45:9}=\dfrac{1}{5}\\\\\dfrac{7}{42}=\dfrac{7:7}{42:7}=\dfrac{1}{6}\\\\\dfrac{9}{45}:\dfrac{7}{42}=\dfrac{1}{5}:\dfrac{1}{6}=\dfrac{1}{5}\cdot\dfrac{6}{1}=\dfrac{1\cdot6}{5\cdot1}=\dfrac{6}{5}=\dfrac{5+1}{5}=\dfrac{5}{5}+\dfrac{1}{5}\\\\=1+\dfrac{1}{5}=\boxed{1\dfrac{1}{5}}$

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4 years ago

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Celina can walk 4 miles in 1 hour and can run 8 miles in 1 hour. What percent of Celina’s average running speed is her average w

Valentin [98]

Okay. So, we're looking for the percentage of Celina's running speed as her walking speed. Her running sped is 8 mph and her walking speed is 4mph. All we have to do is 4/8 = x/100. You put change/original and x/100, because we're looking for the percent of change from running speed to walking speed. Cross multiply the values to get 400 = 8x. Divide each side by 8 to isolate the "x". 400/8 is 50. x = 50. Celina's walking speed is 50% of her running speed. The answer is B: 50%.

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4 years ago

Jillian walked 0. 5 miles before she started jogging at an average pace of 5 miles per hour. The equation d = 0. 5 5t can be use

AVprozaik [17]

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The independent Variable is Time, and the dependent variable is Distance

Step-by-step explanation:

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