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3 years ago

Please help me with the answer I need help

Mathematics

2 answers:

Otrada [13]3 years ago

6 0

Answer:

+30 +-25

Savings is positive

Buying is negative

Step-by-step explanation:

+30 saved

-25 to buy

+30 +-25

Savings is positive

Buying is negative

dolphi86 [110]3 years ago

6 0

30+(-25) that is your answer

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Someone help pleaseeee

qaws [65]

Answer:

Part A = D

Part B = 5 and 50

Step-by-step explanation:

Part A:

area = 5*4x = 20x

so, $100 \leq 20x \leq 1000$

Part B:

to leave it only by x, you divide both sides by 20

100/20 = 5, 1000/20 = 50

which $5\leq x\leq 50$

7 0

3 years ago

Where y=5x-7 and -3x-2y=-12 Write your answer as x,y

Mariulka [41]

Answer:

(x,y) = (2,3)

Step-by-step explanation:

y=5x-7 (i)

-3x-2y= -12

-(3x+2y)= -12

3x+2y= 12 (ii)

By putting the value of y from (i) in (ii)

3x+2(5x-7)=12

3x+10x-14=12

13x=12+14

13x= 26

x = $\frac{26}{13}$

x= 2

By putting the value of x in (i)

y= 5(2)-7

y= 10-7

y= 3

(x,y) = (2,3)

5 0

2 years ago

Tina had $47.10 in her bank account on Monday. She withdrew $25 on Monday and also made a deposit of an amount d that she cannot

nalin [4]

The correct answer is a. 47.10 - 25 + d = 97.43.

This is because you have to subtract the $25, because it is a withdrawal, or taking out of money.
This rules out options C and D.

Also, Tina made a deposit of an amount that she can't remember. A deposit is adding a certain amount of money, so you have to +d.

This rules out option B.

The only option left is option A, which makes complete sense.

4 0

2 years ago

The line passes through (2,1) and (6,7)

Ilya [14]

............y=3/2x-2

3 0

2 years ago

The length of a rectangle is

Readme [11.4K]

Answer:

Step-by-step explanation:

5 0

3 years ago