D.
1/5 of 65 is
65 × 1 / 5
65 / 5
= 13
65 and 13 add up to 78.
65 is the highest number out of both numbers.
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1a 2.5 characters per second
1b 3 characters per second
1c 3.5 characters per second
1d s = 2 + 0.5m
2a 8 = 2 +0.5m
6=0.5 m
m=12
2b the final speed James wants is 8 cps. sub that in for s. we want to know m. first, subtract 2 from both sides to get 6. then, divide by 0.5, which is 1/2 as a fraction. In order to divide a number by a fraction, you need to invert the fraction and switch operations from division to multiplication. It becomes 2/1 * 6 = 12.
3a 10 r +4 = 8
10r =4
r =4/10=2/5
3b. In this equation, r could be the increase in amount of characters that Lydia can type per second.
4. John buys a small tree that is 5 inches tall. Each month, this tree grows 8 inches. How long will it take for the tree to reach 37 inches in height?
If this helps, please consider giving me brainliest.
Answer:
Step-by-step explanation:
Width = 5v - 4w
Length = 3v + 7w
Perimeter = 2*(length + width)
= 2* (3v + 7w + 5v - 4w)
= 2* (3v + 5v + <u>7w - 4w)</u> {Combine like terms}
= 2* (8v + <u> 3w)</u>
= 2*8v + 2*3w
= 16v + 6w
Answer:
whats the question?
Step-by-step explanation:
I need a question to answer it
Answer:4
Step-by-step explanation:
