Question

Jun Wei had 40 more marbles than Joe at first. After joe had given Jun Wei 10 marbles, Jun Wei had 5 times as many marbles as Joe. How many marbles did joe have at first?

193

likes

965 views

Answer to a math question Jun Wei had 40 more marbles than Joe at first. After joe had given Jun Wei 10 marbles, Jun Wei had 5 times as many marbles as Joe. How many marbles did joe have at first?

$Expert avatar$

Lurline

4.6

104 Answers

x = Jun Wei's marbles y = Joe's marbles x = y + 40 (x + 10) = 5(y - 10) (y + 40 + 10) = 5(y - 10) y + 50 = 5y - 50 y - 5y = -50 - 50 -4y = -100 y = -100/-4 y = 25 answer: 25

Frequently asked questions (FAQs)

What is the measure of an exterior angle of a regular pentagon?

Math Question: In a triangle, if side a has a length of 8, side b has a length of 11, and angle C measures 60 degrees, what is the measure of angle A?

What is the equation of the exponential function with a vertical stretch of 2, horizontal compression of 3, horizontal shift 4 units right, and vertical shift 5 units up?

New questions in Mathematics

The patient is prescribed a course of 30 tablets. The tablets are prescribed “1 tablet twice a day”. How many days does a course of medication last?

A college believes that 22% of applicants to that school have parents who have remarried. How large a sample is needed to estimate the true proportion of students who have parents who have remarried to within 5 percentage points?

Jose bought 3/4 of oil and his sister bought 6/8, which of the two bought more oil?

A drawer contains three pairs of white socks, five pairs of black socks and two pairs of red socks. Caden randomly selects two pairs of socks on his way to the gym. What is the probability that both pairs of socks are black?

4x567

Suppose 56% of politicians are lawyers if a random sample of size 564 is selected, what is the probability that the proportion of politicians who are lawyers will differ from the total politicians proportions buy more than 4% round your answer to four decimal places

Equivalent expression of the sequence (3n-4)-(n-2)

The beta of a company is 1.51 while its financial leverage is 27%. What is then its unlevered beta if the corporate tax rate is 40%? (4 decimal places)

7/6-(-1/9)

How many anagrams of the word STROMEC there that do not contain STROM, MOST, MOC or CEST as a subword? By subword is meant anything that is created by omitting some letters - for example, the word EMROSCT contains both MOC and MOST as subwords.

Suppose that you use 4.29 g of Iron in the chemical reaction: 2Fe(s) + 3 Cu2 + (aq) 2Fe 3 + (aq) + 3Cu(s ) - . What is the theoretical yield of Cu (s), in grams?