Should be the fourth answer.
By replacing you get:
5*7-2*11+3*(-1) = 35-22-3= 10
so the answer is 10.
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Answer:3 & 4
Step-by-step explanation: those are the two with multiplication/division
Answer:
15 girls, 35 boys
Step-by-step explanation:
Step 1:
3 : 7 Ratio
Step 2:
3x + 7x = 50 Substitute
Step 3:
10x = 50 Add
Step 4:
50 ÷ 10 Divide
Step 5:
x = 5
Answer:
15 girls, and 35 boys Multiply
Hope This Helps :)