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3 years ago

Y1= 2x ; y2= 2x2 ; y3 = 2x

Mathematics

2 answers:

frutty [35]3 years ago

8 0

4
80
exponential
linear
these are the answers to all four questions on this edg.enuity page assignment.

Alex17521 [72]3 years ago

8 0

Answer:

Here is a reference

Step-by-step explanation:

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Five cupcakes and two cookies cost $19.75. Two cupcakes and four cookies cost $ 17.50.

alina1380 [7]

Answer:

Step-by-step explanation:

Let x and y represent the cost of a cupcake and cookie respectively.

Given that;

Five cupcakes and two cookies cost $19.75.

$5x+2y=19.75 ---------- 1$

Two cupcakes and four cookies cost $17.50.

$2x+4y=17.50 --------------2$

Let's solve the simultaneous equation by elimination;

Multiply equation 1 by 2;

$10x+4y=39.50-------3\\$

Subtract equation 2 from equation 3;

$10x-2x+4y-4y=39.50-8x=22$

$8x=22$

divide both sides by 8

$\frac{8x}{8} =\frac{22}{8} \\x=2.75$

Since we have the value of x, let substitute into equation 1 to get y;

$5x+2y=19.75\\5(2.75)+2y=19.75\\13.75+2y=19.75\\2y=19.75-13.75\\2y=6\\y=\frac{6}{2} \\y=3.00$

therefore , the cost of cupcakes and cookies are;

$cupcakes= 2.75\\cookies= 3.00$

PLEASE MARK ME AS BRAINLIEST

6 0

3 years ago

What is the value of x in the equation x – y = 30, when y = 15?

slamgirl [31]

Since −y does not contain the variable to solve for, move it to the right side of the equation by adding y to both sides.x=y+30

5 0

3 years ago

PLZ HELP WILL GIVE BRAINLIEST

Naddik [55]

y = -0.65 (6) + 7.34

y = 3.44

but the dot plot showed when x = 6, y = 4

so 4 - 3.44 = 0.56

Answer

0.56

3 0

3 years ago

20 points for quick math problem what a deal! Please show work

Karo-lina-s [1.5K]

Answer:

11 cm

Step-by-step explanation:

As Y is midpoint if XZ

XY=YZ=2a+1

WZ=WX+XY+YZ=28

a+1+2a+1+2a+1=28

5a+3= 28

5a=25

a=5

XY=2a+1

=2(5)+1

=10+1

=11 cm

5 0

3 years ago

The Calef family likes to paddle along the Susquehanna River.

xxTIMURxx [149]

Answers:

a. $\frac{14}{3}=4.667$ miles/day

b. 14 miles

Explanation:

Part a:

We are given that they paddled a total distance of 14 miles for 3 days. To get the distance paddled each day, we will divide the total paddled distance by the number of days

This is done as follows:

Distance paddled each day = $\frac{14}{3}=4.667$ miles/day

Part b:

Now, we are given that:

i. They went half their daily distance:

Daily distance = $\frac{1}{2}*\frac{14}{3}=\frac{7}{3}$ miles/day

ii. They extended the trip twice as many days

Number of days = 2 × 3 = 6 days

The total distance paddled will be equivalent to the product of the distance paddled each day and the total number of days

This means that:

Total distance = $\frac{7}{3}*6=14$ miles

Hope this helps :)

4 0

3 years ago