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bazaltina [42]
3 years ago
9

Two years ago, Rita was three times older than Cheryl. In 3 years, Rita will be twice older than Cheryl. How old are the girls n

ow?
Mathematics
2 answers:
klemol [59]3 years ago
8 0

Answer:

15 and 26

Step-by-step explanation:

julsineya [31]3 years ago
6 0

Answer:

Rita is 17 years old and Cheryl is 7

Hope this Helps :)

Step-by-step explanation:

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Find the value of each variable.<br> PHOTO ABOVE <br> ⚠️TEST⚠️
telo118 [61]

Answer:

34

Step-by-step explanation:

5 0
2 years ago
The low temperature for a January day in Atlanta, GA was 8°C. On the same day, the low temperature in Chicago was -4°C and in Ph
nordsb [41]
The correct answer is B.

With negative numbers, the "smaller" the number looks the bigger it is.

-2 is greater than -4.

Positive numbers are greater than negative numbers so we have:

8 > -2 > -4
5 0
3 years ago
Read 2 more answers
Using linear combination method what is the solution to the system of linear equations 7X -2Y = -20 and 9X + 4Y = -6
Yakvenalex [24]

Answer:

(x,y ) = ( - 2,3)

Step-by-step explanation:

given the 2 equations

7x - 2y = - 20 (1)

9x + 4y = -6 (2)

8 0
3 years ago
A landlord owns 3 condominiums, a 1-bedroom condo, a 2-bedroom condo, and a 3-
marusya05 [52]

Answer:

I bedroom condo = $280

2 bedroom condo = $400

3 bedroom condo = $560

Step-by-step explanation:

Given that :

Total rental cost for all 3 condos = $1240

Let :

I bedroom condo = b

2 bedroom condo = c

3 bedroom condo = 2b

Hence,

b + c + 2b = 1240

3b + c = 1240 - - - (1)

REPAIR COST :

Total repair cost = $276

1 bedroom = 10% of b = 0.1b

2 bedroom = 20% of c = 0.2c

3 bedroom = 30% of 2b = 0.3 * 2b = 0.6b

Hence,

0.1b + 0.2c + 0.6b = 276

0.7b + 0.2c = 276 - - - (2)

From (2)

0.7b + 0.2c = 276

0.7b = 276 - 0.2c

b = (276 - 0.2c) / 0.7

Substitute b = (276 - 0.2c) / 0.7 into (1)

3(276/0.7 - 0.2c/0.7) + c = 1240

1182.8571 - 0.8571428c + c = 1240

1182.8571 + 0.1428571c = 1240

0.1428571c = 1240 - 1182.8571

0.1428571c = 57.1429

c = 57.1429 / 0.1428571

c = 400

3b + c = 1240

3b + 400 = 1240

3b = 1240 - 400

3b = 840

b = 840/3

b = 280

Hence,

I bedroom condo = $280

2 bedroom condo = $400

3 bedroom condo = 2(280) = $560

6 0
2 years ago
A man can buy 20 mangoes or 30 oranges. If he wants a each amount of each, how many of each would he get? Write an EQUATION to s
mariarad [96]

Answer:

12

Step-by-step explanation:

In this question, there are two variables: the number of mangoes(y) bought and the number of oranges bought(x).

Let's say the man have z money, mangoes price is \frac{1}{20}z and the oranges price is \frac{1}{30}z. The equation for money and number of mangoes and oranges will be:

money = mango price * mangoes bought + orange price * orange bought

z= \frac{1}{20}z * x + \frac{1}{30}z *y

1= \frac{1}{20}x +\frac{1}{30}y

-\frac{1}{30}y= \frac{1}{20}x -1

y= -1.5x + 30

y= 30 - 1.5x

If he want equal number of mango and orange, that mean y=x. The calculation will be:

y= 30 - 1.5x

x= 30 - 1.5x

x+ 1.5x = 30

2.5x= 30

x= \frac{30}{2.5}= 12

5 0
2 years ago
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