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Sliva [168]
3 years ago
6

Date

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
7 0

Answer:

so what

Step-by-step explanation:

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The bill for your dinner is $91. You leave a $15.47 tip. What is the percent of tip?
mixas84 [53]

Answer: 17%

Step-by-step explanation:

15.47 over 91 = x over 100

cross multiply and reduce to find 17.

4 0
3 years ago
There are 62rows of 9 chairs in the movie theater about how many chairs are there
dem82 [27]
It's easy it's just 62×9 it equals 558
4 0
3 years ago
Read 2 more answers
Find the circumference and the area of the circle with a diameter of 15ft​
guapka [62]

Answer:

Circumference is pi times diameter so that would equal 15 pi. The formula to find the area of a circle is A=pi * r^2 So you divide 15 by 2 to find the radius. r=7.5 Then you square it and multiply it by pi and get 56.25pi which is about equal to 176.715

6 0
3 years ago
Geraldine has 8 cups of sugar. She uses 6 3/5 cups to make a large cake. How many cups of sugar does she have left?
Inga [223]

Answer:

1\frac{2}{5}

Step-by-step explanation:

remaining cups = total cups - used caps

let remaining cups be = x

     total cups = y = 8

      used cups = z= 6\frac{3}{5}

Hence x = y-z

x = 8 - 6\frac{3}{5}

  = \frac{8}{1}  - \frac{33}{5}  = \frac{40-33}{5} = \frac{7}{5} = 1\frac{2}{5}

x= 1\frac{2}{5}

Remaining cups = 1\frac{2}{5}

4 0
3 years ago
How to solve 11x-13y=89 and -11x+13y=107 by substitution
enyata [817]
\left\{\begin{array}{ccc}11x-13y=89&/+13y\\-11x+13y=107&/\cdot(-1)\end{array}\right\\\\\left\{\begin{array}{ccc}11x=13y+89\\11x-13y=-107\end{array}\right\\\\substitute:\\\\(13y+89)-13y=107\\13y-13y+89=107\\89=107-FLASE\\\\Answer:No\ solution\ (x;\ y\in\O)
8 0
3 years ago
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