To calculate how many points this person got, take 90% of the total:
0.9(70) = 63
A test score of 90% is 63 points out of 70.
Answer:
343 - 64 + 457 Solve then you get your answer
<u><em>Answer: x=8 and 8=x. *The answer must be have positive sign.*</em></u>
Step-by-step explanation:
addition property of equality is adding the same number to both sides of an equation does not change the equation.
a+c=b+c
distributive property: a(b+c)=ab+ac
add the numbers.
7x-3x=4x
4x-8=24
add by 8 both sides of an equation.
4x-8+8=24+8
simplify by equation.
24+8=32
4x=32
divide by 4 both sides of an equation.
4x/4=32/4
simplify by equation.
32/4=8
32/8=4
8*4=32
4*8=32
It change negative to positive.
x=8 and 8=x
Hope this helps!
Thanks!
Have a great day!
Answer:
x = 49
Step-by-step explanation:
The two interior angles added together equal the exterior angle.
Make an equation and solve for x.
x - 4 + 2x + 10 = 153
3x + 6 = 153
3x + 6 - 6 = 153 - 6
3x = 147
3x/3 = 147/3
x = 49
So this question is asking whether 9/50 or 1/5 is more. To do this we need to make 1/5 have a denominator of 50. So, we multiply the numerator and the denominator by 10.
1/5 * 10/10 = 10/50
Because 9/50 is less than 10/50, more kids want to see in the future.
