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guajiro [1.7K]
3 years ago
8

Explain how "9+10=21"

Mathematics
2 answers:
Varvara68 [4.7K]3 years ago
8 0

Answer: it doesnt need an explanation, it just does.

Step-by-step explanation: im not stoopid

Korvikt [17]3 years ago
7 0

Answer:

this is a stupid question

Step-by-step explanation:

ur just making fun of the kid who said that 9 + 10 = 21

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The Price family and the Jenkins family each used their sprinklers last summer. The water output rate for the Price family's spr
PIT_PIT [208]

Set up two equations:

1st:  P (for Price family) + J (for Jenkins family) = 45 hours

2nd: 20P + 35J = 1200 liters

Rewrite the first equation as P = 45 – J

Replace P in the second equation:

20(45-J) + 35J = 1200

Simplify:

900 -20J + 35J = 1200

900 +15J = 1200

Subtract 900 from both sides:

15J = 300

Divide both sides by 15:

J = 300/15

J = 20

Jenkins used theirs for 20 hours

Price used theirs for 45-20 = 25 hours.

7 0
2 years ago
Mr. Suárez wants to paint his storage shed. He needs to calculate the lateral surface area of the shed so
astraxan [27]

Answer:

Lateral surface area of the storage shed = 336 ft²

Step-by-step explanation:

The shed is in the shape of a rectangular prism. The lateral surface area of the storage shed can be calculated below. The lateral area is the sides of the prism.

lateral area of a rectangular prism = 2h (l + w)

where

l = length

h = height

w = width

h = 8 ft

l = 14 ft

w = 7 ft

lateral area of a rectangular prism = 2h (l + w)

lateral area of a rectangular prism = 2 × 8 × (14 + 7)

lateral area of a rectangular prism = 16 (21)

lateral area of a rectangular prism = 336 ft²

Lateral surface area of the storage shed = 336 ft²

7 0
2 years ago
Dorian is spreading mulch on his triangular flowerbed. If the base is 8 feet and the height is 6 feet. How many square feet of m
katovenus [111]

Answer:

24 square feet

Step-by-step explanation:

Given:

Dorian is spreading mulch on his triangular flowerbed.

The base is 8 feet.

The height is 6 feet.

Question asked:

How many square feet of mulch will he need for the flowerbed?

Solution:

The base of  triangular flowerbed = 8 feet.

The height of  triangular flowerbed = 6 feet.

now, to find how many square feet of mulch he will need for the flowerbed, we will find area of the triangular flowerbed:-

As we know:

Area\ of\ triangle=\frac{1}{2} \times base\times height

                           =\frac{1}{2} \times8\times6\\\\ =\frac{48}{2} \\ \\ =24\ square\ feet

Thus, 24 square feet of mulch he will need for the flowerbed.

8 0
3 years ago
Find the measure for &lt; MQX<br><br> 54<br> 59<br> 63<br> 65
vivado [14]
3x+39=5x+29
x=5
3(5)+39=54
5(5)+29=54
A) 54°
8 0
3 years ago
Brandon buys a radio for $43.99 in a state where the sales tax is 7%
Tomtit [17]

Answer:

47.0693

Step-by-step explanation:

43.99+7%

it days it needs to be longer so.... jdjdjnd NFL jdhbbkdjdhhsj

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3 years ago
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