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3 years ago

Mary can make a quilt in 3 days and Eva can make

Mathematics

1 answer:

Rina8888 [55]3 years ago

7 0

Answer: in explanation

Step-by-step explanation

Sandi can perform 1/9 of the task in a day

Eva can perform 1/5 of the task in a day

Working together, they can perform

1/9 + 1/5 of the task per day

= 5/45 + 9/45 = 14/45 of the task in a day

or 45/14 days in the task = 3.2 days

It would take about 3.2 days to complete the task working togethe

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I am in algebra 1, please help i am so lost :(

In-s [12.5K]

The correct answer would be #2

8 0

4 years ago

Martin is painting the shed shown. The shed is shaped like a cube. He wants to paint the outside walls of the shed using paint t

laila [671]

Answer:

Step-by-step explanation:

7 0

3 years ago

Which direction would the graph of y= -[x]+9

murzikaleks [220]

The direction of the graph would go downwards as it has a negative slope. Additionally, the line will start from 9 since that is the y-intercept.

5 0

3 years ago

A graph is a straight line through the point (0, 5). Can the graph represent a proportional relationship? Explain.

Snezhnost [94]

Answer:

The graph cannot represent a proportional relationship

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin (0,0)

That means----> The x-intercept and the y-intercept of the line must to be the origin (0,0)

If the given line passes through the point (0,5), then the line not passes through the origin

therefore

The graph cannot represent a proportional relationship

3 0

3 years ago

What is the solution to the system of linear equations? {2x+4y=38 10x+3y=105

natali 33 [55]

This is the concept of simultaneous equations, the question requires us to solve the system of equations given by:
2x+4y=38
10x+3y=105
from the top equation;
2x=38-4y
dividing through by 2 we get:
x=19-2y......(*)
substituting (*) in the second equation we get:
10x+3y=105
10(19-2y)+3y=105
190-20y+3y=105
collecting like terms we get:
-20y+3y=105-190
-17y=-85
dividing both sides by -17 we get:
(-17y)/(-17)=(-85)/(-17)
y=5
thus
x=19-2y
x=19-2*5
x=19-10
x=9
thus
x=9 and y=5

8 0

3 years ago