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hjlf
2 years ago
10

Pls if anyone knows the answer with work included/steps that will be greatly appreciated :)

Mathematics
2 answers:
Leni [432]2 years ago
8 0

Step-by-step explanation:

3. The length of the rectangle is 3x and width is x+5

Now,

Area of rectangle=l×b

=3x(x+5)

=3x^2+15x(option d.)

4. 2/3x-4=20

2x/3=20+4

2x/3=24

2x=24×3

2x=72

x=72/2

x=36(option d.)

irina [24]2 years ago
6 0

Answer:

3.  3x^2 + 15x

4.  x=36

Step-by-step explanation:

The area of a rectangle is

A = l*w

A = (3x)*(x+5)

Distribute

3x^2 + 15x

2/3x - 4 = 20

Add 4 to each side

2/3x -4+4 = 20+4

2/3x = 24

Multiply each side by 3/2

2/3*3/2 =24*3/2

x = 12*3

x=36

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Select the expression that means y divided by 3.
LenKa [72]

Answer:

E. y/3

Step-by-step explanation:

Read and follow:

Y DIVIDED BY 3

Y         ÷            3

or just

\frac{y}{3}

Hope this helps

~R3VO

5 0
2 years ago
Read 2 more answers
4) An arithmetic sequence has a 7th term of 54 and a 13th term of 94. Find the common difference
san4es73 [151]

Answer:

20/3

Step-by-step explanation:

Every nth term takes the form of  a + n*d, where a is the first  term.

So 7th term = (54 = a + 7d), 13th term = (94 = a + 13d).

equate them both:

94 - 13d = 54 - 7d

40 = 6d

d = 40/6

6 0
2 years ago
Chase answers 3/4 of his math questions correctly. There were 40 questions on the test.
nordsb [41]

multiply 40 by 3/4

40 x 3/4 = 40*3 = 120, 120/4 = 30

 he answered 30 correctly

40-30 = 10, he missed 10

4 0
2 years ago
Cleo won 75% of the games he pitched. If he won 30 baseball games, how many games did he<br> pitch?
Free_Kalibri [48]

Answer:

40

Step-by-step explanation:

75% divided by 3 since its 3/4 of 100

do the same to 30

7 0
3 years ago
A cake that costs $32 is on sale for 15% off and there are no taxes. Explain why the expression
Darya [45]

Answer:

$27.2

Step-by-step explanation:

A cake that costs $32 is on sale for 15% off and there are no taxes. Explain why the expression (0.85).32 represents the final price of the cake in dollars.

This is explained in the calculation below

= A cake that costs $32 is on sale for 15% off

The amount off the cake is calculated as

= 15% of $32

= 15/100 × 32

= $4.8

The amount he is paying for the cake =>$32 - $4.8

= $27.2

The above expression is obtained as

(0.85).32

= (100% - 15%) × 32

=( 1 - 0.15) × 32

= 0.85 × 32

= $27.2

The final price of the cake = $27.2

7 0
3 years ago
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