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3 years ago

Solve these questions. Pls show your work.

Mathematics

2 answers:

zhannawk [14.2K]3 years ago

6 0

I solved it but don’t know how to show my work

Alexxx [7]3 years ago

5 0

Answer:

I cant see the pic owo

Step-by-step explanation:

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Y=3x + 15 4X-3y =25 SOLVE BY SUBSITUTION

VLD [36.1K]

Answer:

y = 3x + 15

4x - 3y = 25

4x - 3x + 15 = 25

x = 25 - 15

x = 10

8 0

3 years ago

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The diagram shows the dimensions of the pool cover for a hotel pool.

vlabodo [156]

Step-by-step explanation:

if pool is like cylinder

area =πr²h

if pool is cuboid

then area =2(lh+bh+lb)

7 0

3 years ago

Suppose that you spin the double wheel pictured to the right. Assuming that the wheels are independent and each outcome is equal

Anna11 [10]

Answer:

0.125

Step-by-step explanation:

Smaller Wheel

Total Number of Equal Sectors = 8

The number of Red sectors =3

The probability of obtaining red on the smaller wheel $=\dfrac38$

Larger Wheel

Total Number of Equal Sectors = 12

The number of Red sectors =4

The probability of obtaining red on the larger wheel $=\dfrac{4}{12}$

Assuming that the wheels are independent and each outcome is equally likely, the probability that we get red on both wheels

$=\dfrac38 \times \dfrac{4}{12}\\\\=\dfrac18\\\\=0.125$

The probability is: 0.125

3 0

3 years ago

1.) you have a credit card with an initial balance of $3,168 and an interest rate of 12.75 % APR if you make no payments on the

polet [3.4K]

Answer:

1.) [B]

2.) [C]

(3.) [D]

Step-by-step explanation:

1.) Initial amount = $3168

Annual percentage rate = 12.75

per month percentage rate = 1.06%

Interest after 3 months = P*R*T/100

= 3168*1.06*3/100

= 100.74 (aprox)

Balance after 3 months = 3168-100.74

= $3270.06 (aprox) (B.)

2.) Gross pay = $2759

Total interest rate = 7.65%+12%+7% = 26.65%

interest amount= 26.65% *2759 =$728.24 (aprox)

Housing and fixing expenses= $728.54 (C.)

3.) 1 hour = $8.25

1 week= 35 hours

3 weeks = 35*3 hours = 105 hours

Total income= 105 hours = $8.25*105= $866.25

Total interest to be deducted = 7.65+13+9 = 29.65 %

Income after deducting interest = $866.25-256.843 = $609.407

(D.)

4 0

3 years ago

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3/8(2x-8/3x)=21 solve the equation for x

mart [117]

Answer:

$\boxed{\bold{x=-84}}$

Explanation:

Multiply Both Sides By 8:

= $\bold{8\cdot \frac{3}{8}\left(2x-\frac{8}{3}x\right)=21\cdot \:8}$

Simplify:

= $\bold{-2x=168}$

Divide Both Sides By -2:

= $\bold{\frac{-2x}{-2}=\frac{168}{-2}}$

Simplify:

= $\bold{x=-84}$

//Mordancy //.

7 0

3 years ago

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