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OLEGan [10]
3 years ago
8

Heather has 2 less than 5 times the amount of shoes that Donna has. Gina has 1 more than 2 time

Mathematics
1 answer:
gogolik [260]3 years ago
8 0

Answer:

a. (5x-2)-(2x+1)

b. 3x-3

c.39

Step-by-step explanation:

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Licemer1 [7]

Answer:

892.3 X 6 = 5353.8

89.23 X 6 = 535.38

89.23 X 0.6 = 53.538

3 0
2 years ago
Jack plotted the graph below to show the relationship between the temperature of his city and the number of ice cream cones he s
timurjin [86]

Answer:

(a) The amount of ice cream increase as temperature increases

(b)

y = 2x + 5 --- equation

y = 5 --- y intercept

m = 2 --- slope

Step-by-step explanation:

Given

See attachment for graph

Solving (a): The relationship between the variables

From the attached graph, the dots on the graph increases towards up-right direction. This implies that there is a positive correlation between the variables.

In other words;

The amount of ice cream increase as temperature increases

Solving (b): The line of best fit

First, we draw a line through the points (the line should have almost equal points on both sides; see attachment 2).

From (2), we select any 2 points on the line:

(x_1,y_1) = (15,35)

(x_2,y_2) = (0,5)

The slope (m) is:

m = \frac{y_2 -y_1}{x_2 - x_1}

m = \frac{5-35}{0-15}

m = \frac{-30}{-15}

m = 2

So, the line of best fit is:

y = m(x - x_1) + y_1

Substitute known values:

y = 2(x - 0) + 5

y = 2(x) + 5

y = 2x + 5

The y-intercept is when x=0

So, we have:

y = 2*0 + 5

y = 0 + 5

y = 5

6 0
2 years ago
Consider the enlargement of the pentagon. A small pentagon has a bottom side length of x centimeters and left side length of 7 c
il63 [147K]

Answer:

3.3 cm

Step-by-step explanation:

From the above question, we can draw out a proportion

= Small pentagon = Large pentagon

= x/7 = 7/15

Cross Multiply

x × 15 = 7 × 7

15x = 49

x = 49/15

x = 3.2666666667 cm

Approximately= 3.3 cm

7 0
2 years ago
Read 2 more answers
Rewrite it in factored form: x4 - y2 x2
SCORPION-xisa [38]

Answer:

(x^2+xy)(x^2-xy)

Step-by-step explanation:

I'm going to write it so I can see it better:

x^4-y^2x^2

You can use the difference of squares formula:

(x^2+xy)(x^2-xy)

3 0
3 years ago
What is the average rate for the mold over the 6 days
Ksju [112]

Answer:

10.5 square millimeter per day

Step-by-step explanation:

First, we need to find the total change in the area over the course of 6 days.

64-1=63

Now, to find the average, we divide it by 6.

63/6= 10.5

8 0
2 years ago
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