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Papessa [141]
3 years ago
5

For his reading goal this nine weeks, Jeonhee wants to read 1,000 pages. The first week he read 10 pages per day. The second wee

k he read 15 pages per day. The third week he read 20 pages per day. How many more pages does he need to read to reach his goal?
Mathematics
2 answers:
Damm [24]3 years ago
6 0
Ok, so his goal is to read 1,000 pages in 9 weeks. We know 1 week has seven days.

So let’s start with the first one. He reads 10 pages per day on the first week. That’s 10 x 7, which he read 70 pages for the first week.

As for the second week, it’s the same: 15 x 7 = 105 pages read.

Third week: 20 x 7 = 140 pages read.

Add: 70 + 105 + 140 = 175 + 140 = 315 pages read.

Subtract: 1,000 - 315 = 685.

That’s 685 pages he still needs to read until he hits his goal. Hope this helped! :D
zalisa [80]3 years ago
4 0

Answer:

955

Step-by-step explanation:

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\rule{200}4

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\small\sf\longrightarrow \dfrac{S_1}{S_2}=\dfrac{\dfrac{n}{2}[2a + (n-1)d]}{\dfrac{n}{2}[2a' +(n-1)d'] } \\

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\longrightarrow\sf\small \underline{\underline{\blue{ \dfrac{T_{m_1}}{T_{m_2}}=\dfrac{ 14m-6}{8m+23}}}}\\

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