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Pavel [41]
2 years ago
12

The population of a city is 645 people less than it was 5 years ago. The current population is 13,500. What is the population 5

years ago?
Mathematics
1 answer:
olga55 [171]2 years ago
4 0

Let the total population of the city 5 years ago = x

The current population of the city is given as = 13500

As the current population is 645 less than it was 5 years ago, so the equation becomes-

x - 645 = 13500

x = 13500 + 645

x = 14145

So, the total population of the city 5 years back was 14145.

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The line with the equation 4/5x +1/3y=1 is graphed one the xy-plane. What is the x-coordinate of the x-intercept of the line?
leva [86]

Answer:

x = 4/5

Step-by-step explanation:

The x-intercept looks like (x, 0); the coordinate 0 indicates that the point lies on the x-axis.  If we start with 4/5x + 1/3 y= 1 and let y = 0, we will get an equation for the x-intercept:

(4/5)x + (1/3)(0) =1

Then 4/5x = 1, and (5/4)(4/5)x = (1)(4/5).

Thus, x = 4/5, and the x-intercept is (4/5, 0).

4 0
2 years ago
Maggie needs to spend at least six hours each week practicing the piano. She has already practiced three and one fourth hours th
Marta_Voda [28]

Let X equal the remaining time she needs to practice.

You would have 2x

The combined total needs to be 6 hours or greater.

You need to add the amount she already practiced to 2x.

Now you have: three and one fourth + 2x

This needs to be greater than or equal to 6.

Answer: three and one fourth + 2x ≥ 6

8 0
2 years ago
Read 2 more answers
A student spends 17/35 of his pocket money on transport and fruits. He spends 5/6 of the remainder on sweets. What fraction of h
Mashutka [201]

Answer: 3/7 is the pocket money he spends on sweets

Step-by-step explanation:

Let the amount student spends be x

He spends 17/35x on transport and fruits

He spends 5/6 (x - 17/35x) on sweets

5/6 * (x -17/35x)

5/6 * 18/35x

= 3/7x

6 0
2 years ago
S is the centroid of triangle XYZ. What is the length of SW? 5 units 11 units 22 units 28 units
Novay_Z [31]

11 units is the correct answer to this question.

3 0
2 years ago
Read 2 more answers
Explain how to use the combine place value strategy to find 223 -119.
SashulF [63]
Combine place value strategy is useful if you try to subtract a number with bigger digits from a number with a smaller digit in the same place... such as now, where 3 is smaller than 9 in the ones place.

Then we can combine two place values: 23 and 19 and subtruct those. 23-19 is 4 (you can just count up from 19 to 23), so you know that the two will give  the result of 04, and then you can proceed to the left: 2-1=1.

so the final result will 104.
6 0
2 years ago
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