Answer:Total units would be: 3+4 = 7. value of 1 unit = 28/7 = 4. ratio would be 3(4) & 4(4) = 12 & 16
Step-by-step explanation:
Answer:
2(d+3)
Step-by-step explanation:
2*d=2d
2*3=6
7x-4=5x+15
-5x on both sides
2x-4=15
add four to both sides
2x=19
divide both sides by 2 to isolate x
x=9.5
Answer:
77 1/6 in
Step-by-step explanation:
7 1/4 * 11 2/3 = 77 1/6 in
Answer:
x=-79/4, y=-45/8. (-79/4, -45/8).
Step-by-step explanation:
-2x+4y=17
3x-10y=-3
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3(-2x+4y)=3(17)
2(3x-10y)=2(-3)
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-6x+12y=51
6x-20y=-6
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-8y=45
y=45/-8=-45/8
3x-10(-45/8)=-3
3x+450/8=-3
3x+225/4=-3
3x=-3-225/4
3x=-12/4-225/4
3x=-237/4
x=(-237/4)/3
x=(-237/4)(1/3)
x=-237/12=-79/4