3 years ago

30 girls and boys have planned for a picnic.There is a ratio of 3 girls to 7 boys.How many boys are there?

Mathematics

1 answer:

aksik [14]3 years ago

4 0

3 times 10 is 30, 7 times 10 is 70. There are 30 girls and 70 boys.

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This connects to the last one I did

vichka [17]

-4x+3 and -2y idk if that's completely right tho

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2 years ago

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Hurry pls!!! PLS ANSWER THE ATTACHMENT BELOW!!!

seraphim [82]

Answer:

Step-by-step explanation:

You just have to replace the value of n with 4.

C(n) = 46 + 3n

C(4) = 46 + 3(4)

= 46 + 12

= 58

4 0

2 years ago

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If there are 30 girls and 50 boys In a class how what is the greatest Conan factor

dexar [7]

Answer:The greatest common factor is 15 to 10.

Step-by-step explanation:

4 0

3 years ago

The midpoint of (3 x, -2) and (-4, 5y) is (1,4). find x, -y

Mariana [72]

Answer:

(x,-y): (2,-2)

Step-by-step explanation:

M=(x+x)/2,(y+y)/2

Given (1,4)=

$\frac{3x - 4}{2}$

This implies:

$1 = \frac{3x - 4}{2}$

$3x - 4 = 2 \\ 3x = 2 + 4 \\ \frac{3x }{3} = \frac{6}{3} \\ x = 2$

In a similar way,

$4 = \frac{ - 2 + 5y}{2} \\ - 2 + 5y = 8 \\ 5y = 10 \\ y = 2$

The question demanded (x,-y)

Hence(2,-2) is the answer

7 0

2 years ago

Please work it out down below.

Anna35 [415]

Answer:

Step-by-step explanation:

3 |a-b| +2|b-1|

a= -2 and b=-4

3 |-2--4| +2|-4-1|

3 |-2+4| +2|-4-1|

3 |2| +2|-5|

Absolute value means takes whatever is inside and make it positive

3*2 +2*5

6 +10

5 0

3 years ago