MATHEMATICS HIGH SCHOOL

What is 10 more than 39

Answers

Answer 1
Answer:

Answer:

49

Step-by-step explanation:

10 more than means 10 greater than = + 10

So you simply add 10 to 39

39 + 10 = 49

Answer 2
Answer: 49 because 30+10=40 and then you add the 9 so therefor it would be 49

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9. Zane owes his dad money for his cell phone that helost. So far, Zane has paid his dad $23, and he will pay
his dad an additional $45 each month until he has
repaid him for the phone. Which equation shows the
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Zane has been making payments and t, the total
amount he has paid his dad?

Answers

Answer:

T=45m+23

Step-by-step explanation:

Answer:

T=45m+23

Step-by-step explanation:

Lisa is 4 years older than three times her brother Sammy's age. Let 's' represent Sammy's age and 'l' represent Lisa's age. Which expression represents Lisa's age?

• l = s + 4

• l = 3s

• l = 3s + 4

• l = 4s + 3

Answers

l=s+4  bc lisa is 4 and we don't know who old is Sammy..

how to is the tree that cast a shadow of 320 centimeter long and john who is majoring the tree is 180 centimeter tall and cast a shadow of 180 centimeter long?

Answers

ok so ratios
john casts a shadow of 180 when he is 180
therefor shadowheight=realheight
320shadowheight=realheight


realheight=320centimeters

On a map, two towns P and Q are 15.5 cm apart. The scale of the map is 1 cm: 4 km. Calculate the actual distance between P and Q.​

Answers

multiply 15.5 by 4

62 is the answer

Simplify the radical expression sqrt 7+3 sqrt 7

Answers

4√(7)

This is because there is an imaginary 1 in front of the first sqrt. 
√7+3√7 = 4√7
thus answer is 4√7

If tanx = 0.75, find the value ofi. cos2x + sin2x
2tanx
ii.
for 0° < x < 90°
C0Sx-sinx
-

Answers

Answer:

i. 31/25

ii. 1/5

Step-by-step explanation:

you know that tanx = 3/4, so you can also find that sinx = 3/5 and cosx = 4/5. Then you can use the double angle identities to find cos2x and sin2x: cos^2(x) - sin^2(x) + 2sinxcosx and substitute the givens to get 31/25. Then, cosx - sinx is obviously 1/5.

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