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4 years ago

#1-7 10 points!!!! please help :)

Mathematics

1 answer:

Contact [7]4 years ago

4 0

1. A
2. D
3. C
4. 5n
5. 24 ?
6. 80
7. 5

they may not be right i honestly dont know but hopefully it helps just a little :’)

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Nicole wrapped 28 gifts. Nicole wrapped 4 times as many gifts as Lamar. Let g be the number of gifts that Lamar wrapped

ValentinkaMS [17]

Answer:

Lamar wrapped 7 gifts

Step-by-step explanation:

Lamar wrapped = g

then Nicole wrapped = 4g

then 4 g = 28

g = $\frac{28}{7}$ = 7

∵Therefore, Lamar wrapped 7 gifts

3 0

3 years ago

Calculate AD and hence BD.

Vilka [71]

Answer:

AD = 15 cm , BD = 3 cm

Step-by-step explanation:

Δ ABC is similar to Δ ADE ( by the AA postulate )

then the ratios of corresponding sides are in proportion, that is

$\frac{AD}{AB}$ = $\frac{DE}{BC}$ ( substitute values )

$\frac{AD}{12}$ = $\frac{10}{8}$ ( cross- multiply )

8 × AD = 12 × 10 = 120 ( divide both sides by 8 )

AD = 15 cm

AB + BD = AD , that is

12 + BD = 15 ( subtract 12 from both sides )

BD = 3 cm

7 0

2 years ago

Which graph represents the function y – 3 = 3/2 (x – 4)?

Alinara [238K]

$y - 3 = \frac{3}{2} (x - 4)$
$y = \frac{3}{2} x - 3$
-3 is our y-intercept is plotted on both graphs yet one is negative and the other is positive and
$\frac{3}{2} x$
Is our slope and is positive and the graph that is positive is the first graph.

5 0

4 years ago

Read 2 more answers

What is the slope of the line on the graph? Enter your answer in the box. A coordinate grid that includes the line y equals nega

RUDIKE [14]

we have

the equation of the line is $y=-2x$

the points are

$A(3,-6)\\B(0,0) \\C(-3,6)$

Method 1

we know that

A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form $y/x=k$ or $y=kx$

In this problem we have a direct variation

The constant of proportionality k is equal to the slope of the line

$k=-2$

$m=-2$

therefore

the answer is

the slope of the line is equal to

$m=-2$

Method 2

we know that

the formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

$A(3,-6)\\B(0,0)$

substitute in the formula

$m=\frac{0+6}{0-3}$

$m=\frac{6}{-3}$

$m=-2$

therefore

the answer is

the slope of the line is equal to

$m=-2$

3 0

4 years ago

Read 2 more answers

what is the multiplicative rate of change for the following coordinates (-1, .8) (0,2) (1,5) (2,12.5)

egoroff_w [7]

We can present these coordinates in tabulate form

x y
-1 0.8
0 2
1 5
2 12.5

We work the multiplicative rate of change by finding out the increase ratio

12.5 ÷ 5 = 2.5
5 ÷ 2 = 2.5
2 ÷ 0.8 = 2.5

The ratio results in the same ratio every time, which is 2.5

The multiplicative rate of change = 2.5

5 0

4 years ago