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brilliants [131]
2 years ago
8

Please help me with these question.

Mathematics
2 answers:
kupik [55]2 years ago
8 0
17.B
18.C [hope their right :) ]
Tatiana [17]2 years ago
7 0

Answer:

1. B

2. C

Step-by-step explanation:

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There are as many girls as there are boys in a class. 8 girls went for a dance competition. now there are twice as many boys as
Rashid [163]
Let the number of girls be x and the number of boys be y

The number of boys is the same as the number of girls.
x = y 
The number of boys is twice the number of girls when 8 girls left.
2(x - 8) = y


x = y ---------------- (1)
2(x - 8) = y -------- (2)

Sub (1) into (2)

2(y - 8) = y
2y - 16 = y
2y - y = 16
y = 16
There were 16 boys and 16 girls initially.

16 + 16 = 32 
There were a total of 32 students in the class initially. 



4 0
3 years ago
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Kipish [7]

Answer:

I can help what is your question

7 0
2 years ago
3567 +3569-1467+9087-3=
Stolb23 [73]
14753 is your answer

3 0
3 years ago
Read 2 more answers
X\2+(x+7)•(x+1)pleaseeeeeeeeeeeeeeeeee
bixtya [17]

Answer:

= x^2 + 17/2x + 7

Step-by-step explanation:

x2+(x+7)(x+1)

Distribute:

=x2+(x)(x)+(x)(1)+(7)(x)+(7)(1)

=12x+x2+x+7x+7

Combine Like Terms:

=12x+x2+x+7x+7

=(x2)+(12x+x+7x)+(7)

=x2+172x+7

4 0
3 years ago
Puan Hamidah bought satay from a stall for her children. Her eldest and youngest children ate 1/6 and 0.25 of all the satay resp
shusha [124]

Answer:

12.01 sticks of satay

Step-by-step explanation:

Let

Total satay bought = x

Eldest child ate = 1/6x

Youngest child ate = 0.25x

Total = 1/6x + 0.25x

= 0.167x + 0.25x

= 0.417x

Remaining satay = x - 0.417x

= 0.583x

The rest of the satay was shared equally between her other 2 children where each person ate 14 sticks of satay.

Her and her other two children = 3 people

Sticks of satay pee person = 14

Total sticks eaten by 3 people = 14 × 3

= 42 sticks

0.583x = 42

x = 42/0.583

= 72.04

x = 72.04 sticks

Total satay bought = x = 72.04 sticks

Eldest child ate = 1/6x

= 1/6 * 72.04

= 12.01 sticks of satay

6 0
3 years ago
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