We can solve this system of equation by reduction method.
d+e=15
-d+e=-5
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2e=10 ⇒e=10/2=5
-(d+e=15)
-d+e=-5
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-2d=-20 ⇒d=-20/-2=10
therefore: d=10; e=5
Answer: d.(10,5)
Answer:
50, 5
Step-by-step explanation:
X=number 1
x-45=number 2
x+(x-45)=55
2x=100
x=50 number 1
x-45 is number 2
50-45=5 number 2
Answer:
b. a spinner divided into 5 congruent sectors, spun 4 times
Step-by-step explanation:
Answer:
d. -3a3 – 3a² + a +8
Step-by-step explanation:
Simplify the expression.
Answer: The first step when multiplying fractions is to multiply the two numerators. The second step is to multiply the two denominators. Finally, simplify the new fractions. The fractions can also be simplified before multiplying by factoring out common factors in the numerator and denominator.
