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Sergio039 [100]

1 year ago

6

For two days in a row Alvin jogged in the park he jogged for 46 min on Friday this is 19 min less than he ran on Saturday write

and solve a subtraction equation to find the amount of time Alvin spent jogging on Saturday

1 answer:

Luda [366]1 year ago

8 0

Saturday = 46+19 min = 65 minutes

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Six times Jason's collection of books and one-third of Nathan's collection add up to 134 books. One-third of Jason's collection

zimovet [89]

Answer:

j = 21 and n = 14

Step-by-step explanation:

we have the equations:

6j + n/3 = 134

j/3 + n = 31

54j + 3n = 1206

j + 3n = 93

53j = 1113

j = 21

(21)/3 + n = 31

7 + n = 31

n = 14

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2 years ago

The average age three people running for election is 42. A fourth person joins the race and the average drops to 40. What is the

bogdanovich [222]

Let $a_1,\ldots,a_4$ denote the ages of the 4 candidates. Then

$\dfrac{a_1+a_2+a_3+a_4}4=40$

$a_1+a_2+a_3+a_4=160$

$\dfrac{a_1+a_2+a_3}3+\dfrac{a_4}3=\dfrac{160}3$

The average age of the first 3 candidates is 42, so

$\dfrac{a_4}3=\dfrac{160}3-42$

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5 0

1 year ago

Which number line models the expression 1/8-(-3/4)

RideAnS [48]

Answer:

$\frac{7}{8}$

Step-by-step explanation:

Given: $\frac{1}{8}-(\frac{-3}{4} )$

To find: number which represents the expression

Solution:

Integers refers to natural numbers, 0 together with negative of rational numbers.

A rational number is the number of the form $\frac{p}{q}$ where p and q are integers and $q\neq 0$ .

$\frac{1}{8}-(\frac{-3}{4} )=\frac{1}{8}+\frac{3}{4}\\ =\frac{1+6}{8}\\ =\frac{7}{8}$

So, $\frac{7}{8}$ represents $\frac{1}{8}-(\frac{-3}{4} )$

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1 year ago

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andrezito [222]

Answer:

4

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Kx + 3x = 4 solve for x.

victus00 [196]

Take out a common factor between 3x and kx. That means use the distributive law to get what you normally would start with.

x(k + 3) = 4

Now divide by k + 3

x = 4/(k + 3)

That's as much as you can do with this question.

4 0

1 year ago