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motikmotik
2 years ago
12

(NO BOTS OR LINKS)

Mathematics
2 answers:
nlexa [21]2 years ago
7 0

Answer:

D) division

Step-by-step explanation:

we know that  a ratio is a quantitative relation between two numbers

so let's say

the ratio of boys to girls is 3:4

we know that for every 3 boys there are 4 girls

therefore it is a division operation

abruzzese [7]2 years ago
4 0

Answer: The answer is D; division.

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The cruising speed of a certain airplane is approximately Mach 0.68, meaning 0.68 times the speed of sound. If the speed of
Nonamiya [84]
Tryna get to 100% sorry
5 0
3 years ago
The area of Sahara desert is 7 times the area of the Gobi Desert. If the sum of their areas is 4,000,000 square miles, find the
ryzh [129]
X=area of Sahara.
y=area of the Gobi Desert.
We suggest this system equations:
x+y=4000000
x=7y
solve by susbstitution method.
(7y)+y=4,000,000
8y=4,000,000
y=4,000,000 / 8=500,000

x=7y
x=7(500,000)=3,500,000

The area of Sahara=3,500,00 miles².
The area of the Gobi Desert=500,000 miles²

To check:
Te sum of their areas is : 3,500,000 miles²+500,000 miles²=4,000,000 miles²
Te area of sahara (3,500,000 miles²) is 7 times the area of the Gobi Desert (7*500,000 miles²=3,500,000 miles²).
4 0
3 years ago
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IceJOKER [234]
The length is 2




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3 0
3 years ago
6(y + 7) = 2(y - 3)<br> What is the answer ?
andrew11 [14]

Answer:

Y= -12

Step-by-step explanation:

6(y + 7) = 2(y - 3)

6y+42=2y-6

4y+42=-6

4y=-48

y=-12

7 0
3 years ago
Can anyone tell me what’s the answer??
maks197457 [2]

Answer:

x = 10

y = 25

Step-by-step explanation:

if you add the equations as they are then the 'y-term' is eliminated:

60x = 600

x = 10

substitute x=10 to find value of 'y':

40(10) + 4y = 500

400 + 4y = 500

4y = 100

y = 25

Check:

20(10) - 4(25) should equal 100

200 - 100 = 100

100 = 100

5 0
2 years ago
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