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elena-s [515]
3 years ago
5

Which answer choice is it A 110 B 100 C 70 D 50

Mathematics
2 answers:
hammer [34]3 years ago
8 0

Answer:

The missing angle is D)50

Step-by-step explanation:

These 2 angles are supplementary which means they add up to 180:

x + 130 = 180

x = 180 - 130

x = 50

Effectus [21]3 years ago
8 0

Answer:

D. 50

Step-by-step explanation:

These are supplementary angles which means the sum of both angles should be 180.

180 - 130 = 50

Therefore, the missing angle is 50

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A SUV drove 200 miles on 9 gallons of gas. A truck drove 280 miles on 10 gallons of gas. Find both unit rates for both vehicles.
lawyer [7]

Answer:

Suv= About 22 miles

Truck= 28 miles

Step-by-step explanation:

To find the unit rate of both vehicles, divide the number by how many gallons of gas to see how many miles both vehicles drive on 1 gallon.

6 0
4 years ago
Luz’ family went out to breakfast on Saturday. The bill was $38.50 and the family wanted to leave a 20 percent tip for the serve
s2008m [1.1K]

No. It would be B because she multiplied by 0.02 which is 1 percent and the tip is 20 percent. 0.2 is 20 percent, so it is B

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3 years ago
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Math problem A homeowner has two rectangular structures in her backyard. The dimensions of the hot tub are 6 feet by 8 feet. The
Zolol [24]

Answer:

289feet²

Step-by-step explanation:

Area of a rectangle = length x breadth

area of a square = length²

area of the yard that is not covered by the hot tub and fire pit =

Area of the yard - (area of the hot tub + area of the fire pit)

Area of the yard = 20 feet² = 400 feet²

area of the hot tub =  6 feet² x 8 feet² = 48 feet²

area of the fire pit = 7 feet² x 9 feet² = 63 feet²

400 - (48 + 63) = 289 feet²

3 0
3 years ago
there are 18 cub scouts in troop 545. the number of scouts is three more than five times the number of adult leaders. find the n
aleksley [76]

There are 3 adult leaders since 18-3 = 15 then 15/5= 3

7 0
3 years ago
A portion of the quadratic formula proof is shown. Fill in the missing reason.
Semmy [17]

Answer:

Find a common denominator on the right side of the equation

Step-by-step explanation:

The equation before the problem is

X² + b/a(x) + (b/2a)²= -c/a + b²/4a²

The next step in solving the above equation is to fibd tge common denominator on the right side of the equation.

X² + b/a(x) + (b/2a)²= -c/a + b²/4a²

X² + b/a(x) + (b/2a)²= -4ac/4a² + b²/4a²

X² + b/a(x) + (b/2a)²=( b²-4ac)/4a²

The right side of the equation now has a common denominator

The next step is to factorize the left side of the equation.

(X+b/2a)²= ( b²-4ac)/4a²

Squaring both sides

X+b/2a= √(b²-4ac)/√4a²

Final equation

X=( -b+√(b²-4ac))/2a

Or

X=( -b-√(b²-4ac))/2a

6 0
3 years ago
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