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natta225 [31]
3 years ago
13

The radio of boys to girls in a school is 4:5 there are 80 girl. How many boys are there?

Mathematics
1 answer:
love history [14]3 years ago
6 0

Answer:

64=boys

Step-by-step explanation:

Boys to girls

4:5

80=girls

80÷5=16×4=64

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B is correct answer.
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Mariam’s uncle donate 120 cans of juice and 90 packs of cheese cracker for the school picnic. Each student must receive the same
monitta

Answer:

8 students,

15 cans of juice and 11 packs of cheese cracker

Step-by-step explanation:

Mariam’s uncle donate 120 cans of juice and 90 - 2 = 88 packs of cheese cracker (eats two packs) for the school picnic.

Factor these numbers:

120=2\cdot 60=2\cdot 2\cdot 30=2\cdot 2\cdot 2\cdot15=2\cdot 2\cdot 2\cdot 3\cdot 5\\ \\88=2\cdot 44=2\cdot 2\cdot 22=2\cdot 2\cdot 2\cdot 11

The greatest common factor is

2\cdot 2\cdot 2=8,

so the greatest number of students who can share the food equally is 8 and each student will get 3\cdot 5=15 cans of juice and 11 packs of cheese cracker.

4 0
3 years ago
Plz help will make the Brainly
marysya [2.9K]

Answer:

-2

Step-by-step explanation:

Two points (1,0) (0,2) use slope formula 0-2/1-0

8 0
3 years ago
Given: ABCD trapezoid BC=1.2m, AD=1.8m AB=1.5m, CD=1.2m AB ∩ CD =K Find: BK and CK
tekilochka [14]

Answer:

BK=3

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Step-by-step explanation:

Hope it works

8 0
3 years ago
Two planes, which are 2235 miles apart, fly toward each other. Their speeds differ by 95 mph. If they pass each other in 3 hours
lora16 [44]

Answer:

325 mph and 420 mph

Step-by-step explanation:

If the speed of the slower plane is x, then the speed of the faster plane is x + 95.

The distance traveled by the slower plane is 3x.

The distance traveled by the faster plane is 3(x + 95).

The total distance is 2235 miles.

3x + 3(x + 95) = 2235

3x + 3x + 285 = 2235

6x = 1950

x = 325

x + 95 = 420

The speed of the planes is 325 mph and 420 mph.

5 0
4 years ago
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