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AlexFokin [52]
2 years ago
10

I need help !!30 PTS!!Pls DO help on ALL 3 on the screenshot

Mathematics
1 answer:
GenaCL600 [577]2 years ago
7 0

1. (16,25)-(24,5) the interval it falls from is 25 mph to 5 mph or it decreased by 20 mph.

2. From D (24,5) to E (28,45). The interval of time from point D to point E is 5 mph to 45 mph. or it increased by 40 mph.

3.  From B (6,25) to C (16,25) and the constant rate is 25 MPH.


I'm not 100% sure about the everything.

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Hi! Pleaseee help!!!
dusya [7]

Answer: what is the problem

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Sam scored 80% on Part A of a math test and 92% on part B of the math test. His total mark on the test was 63. The total possibl
Nataly_w [17]

Answer:

0.80A + 0.92B = 63 .....1

A + B = 75 ......2

Step-by-step explanation:

Let A and B represent the total possible score in part A and B respectively;

Analysing each sentence of the question;

Sam scored 80% on Part A of a math test and 92% on part B of the math test. His total mark on the test was 63

80% of A + 92% of B = 63

0.80A + 0.92B = 63 ......1

The total possible marks for the test was 75;

A + B = 75 .....2

So, equation 1 and 2 provides a set of simultaneous equations that can be used to represent and solve the situation.

Solving the simultaneous equations, we will arrive at;

Part A = 50

Part B = 25

6 0
3 years ago
77
Bond [772]
\frac{77}{16} =  \frac{64+13}{16} = \frac{64}{16} + \frac{13}{16} =4 \frac{13}{16}=4.8125\\=4.81 \times 100~percent=481~percent\to\boxed {D}
5 0
3 years ago
Please!!!! Please Help!!!!! 30 Points!!!!!
CaHeK987 [17]

Answer:

9,951.04

Step-by-step explanation:

First you find the area of the rectangle:

44x88=3,872

Then you add the area of the two semi circles:

A=1/2(pi)(r^2)

A= 3,039.52

Multiply the area above by 2 since there are two semi circles and they are the same size.

5 0
2 years ago
Read 2 more answers
8.1 = 0.9a, how do you solve?
GrogVix [38]

Answer:

a = 9

Step-by-step explanation:

Simplifying

8.1 = 0.9a

Solving

8.1 = 0.9a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-0.9a' to each side of the equation.

8.1 + -0.9a = 0.9a + -0.9a

Combine like terms: 0.9a + -0.9a = 0.0

8.1 + -0.9a = 0.0

Add '-8.1' to each side of the equation.

8.1 + -8.1 + -0.9a = 0.0 + -8.1

Combine like terms: 8.1 + -8.1 = 0.0

0.0 + -0.9a = 0.0 + -8.1

-0.9a = 0.0 + -8.1

Combine like terms: 0.0 + -8.1 = -8.1

-0.9a = -8.1

Divide each side by '-0.9'.

a = 9

Simplifying

a = 9

5 0
3 years ago
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