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Brilliant_brown [7]
2 years ago
15

A

Mathematics
1 answer:
REY [17]2 years ago
7 0

Answer: C

Step-by-step explanation:

Angles in a quadrilateral add to 360 degrees, so:

90^{\circ}+90^{\circ}+99^{\circ}+m\angle C=360^{\circ}\\\\m\angle C=81^{\circ}

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Seawall Bike Rental Shop charges a $11 fixed fee plus $9 an hour to rent a bike. Steve paid $56 to rent a bike. How many hours
I am Lyosha [343]

Answer:

5

Step-by-step explanation:

He paid $56 to rent a bike. 56/9 is 5 with a remainder of 11. He paid the fixed fee of $11 and rented the bike for 5 hours.

6 0
3 years ago
Read 2 more answers
Two of the three sides of a triangle are 20 and 15. Which of the following numbers is not a possible perimeter of the triangle?
fgiga [73]
e. 72.

Let x be the measurement of the 3rd side.

x should be greater that the difference of 2 sides
x should be less than the sum of 2 sides

20 - 15 < x < 20 + 15
5 < x < 35

We can assume that x = 35 the maximum measurement of the 3rd side.

Perimeter = 20 + 15 + 35 = 70. Maximum perimeter.

Among the choices, 72 is beyond the maximum, so it is not a possible perimeter of the triangle.

7 0
3 years ago
Find the value of x. Only need 7 and 9 answered.
zalisa [80]

Answer:

Step-by-step explanation

7.

\frac{6}{6+6} =\frac{8}{8+8} =\frac{7}{x} \\\frac{1}{2} =\frac{7}{x} \\x=7*2=14

9.

\frac{x+1}{12} =\frac{x-1}{8} \\12x-12=8x+8\\12x-8x=8+12\\4x=20\\x=20/4=5

7 0
3 years ago
Marsha is filling a fruit basket with apples and pears. if a represents the number of apples and p represents the number of pear
RoseWind [281]
<span>Marsha is filling a fruit basket with apples and pears. if a represents the number of apples and p represents the number of pears, write an inequality using the variables a and p to model the constraint that the fruit basket can hold no more than 25 pieces of fruit?
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a+b<25
8 0
3 years ago
What is the circumference of a circle with a diameter of 5 feet? Use 3.14 for π.
Aloiza [94]

Answer:

31.4 feet or 957.072 centimetre-square

Step-by-step explanation:

We can convert the feet to centimetre or work with it that way

Formula for circumference

C=2TTr^2

C=2*3.14*5

C=31.4 feet

Convert to centimetres

Each feet equal 30.48cm

31.4 feet will be

31.4*30.48= 957.072 cm^2

4 0
3 years ago
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