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4 years ago

In the diagram below, which distance represents the distance from point D to

Mathematics

1 answer:

11Alexandr11 [23.1K]4 years ago

4 0

Answer
A.CD
Cause theCD is the mid point of triangle ADB which divides triangle in two half if you look carefully you can understand the diagram ☺️☺️

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Solve the system of equations. \begin{aligned} & -5x+13y = -7 \\\\ & 5x+4y=24 \end{aligned} −5x+13y=−7 5x+4y=24 x= e

riadik2000 [5.3K]

Answer:

The solution of the given equations

x =4 , y = 1

Step-by-step explanation:

Explanation:-

Step(l):-

Given the system of equations -5x+13y = -7 ..(l)

5x+4y=24 ..(ll)

Step(ll)

Adding (l) and (ll) equations and cancelling '5x' terms we get

13y+4y = -7 +24

17y = 17

dividing '17' on both sides, we get

y=1

Step(lll):-

Substitute y=1 in equation (l) , we get

-5x+13y = -7

-5x + 13(1) = -7

subtracting '13' on both sides, we get

-5x +13 -13= -7 -13

-5x = -20

Dividing '-5' on both sides, we get

$x = \frac{-20}{-5}$

x = 4

Conclusion:-

The solution of the given equations

x =4 , y = 1

7 0

4 years ago

Cheddar cheese costs $4.25 per pound. Which equation best represents y, the total cost of x pounds of cheddar cheese?

SVETLANKA909090 [29]

Answer: c

Step-by-step explanation:

Because the total should be at the end plus how much pounds it is so c

6 0

3 years ago

Twice a number and 5 more is 100

8090 [49]

Hello there! Thank you for asking your question here at Brainly! I will be assisting you with answering this question today, and will be teaching you how to handle it on your own in the future.

First, let's take a look at our problem.
"Twice a number and 5 more is 100."
Based on this context, we are looking for a specific number to plug in.

To solve for this, I will rewrite the problem. As I do so, I will be writing (in parenthesis) the translation of an equation.

Twice a number (2x) and 5 more (+5) is 100 (=100).

Let's rewrite everything that's in parenthesis.
2x + 5 = 100

This is our equation.
To solve for this, we will need to do some basic algebra. Of course, I will teach you how to handle this on your own in future scenarios.

2x + 5 = 100
To solve for x, we need to isolate 2x, and then divide both sides by 2.

2x + 5 = 100
Subtract 5 from both sides to isolate 2x.
5 - 5 = 0
100 - 5 = 95

We now have the following equation:
2x = 95
Divide both sides by 2 to solve for x.

2x / 2 = x
95 / 2 = 47.5

x = 47.5

47.5 is your number.

I hope this helps!

3 0

3 years ago

Shaun collected $925 on the first day of a charity fundraiser. On the second day, he collected $728. By the third day, he had co

sergeinik [125]

A. There was a percent decrease of 21.3% from the first to the second day.

B. There was an increase of 21.6% from the second to the third day.

Step-by-step explanation:

Step 1; Shaun collected $925 the first day and $728 in the second day.So there has been a decrease in money collected. Percent decrease is given by dividing the difference in values by the actual value multiplied by 100.

% decrease = (difference in values / initial value) × 100

% decrease = (925 - 728)/ 925 × 100 = 197/925 × 100 = 21.297%.

This is rounded off to 21.3%.

Step 2; We need to calculate the money collected on the third day.

Money collected on the third day = Total money collected in three days - money collected on the first and second day. =$2,538 - ($925 + $728) = $2,538 - ($1,653) = $885.

Step 3; So Shaun collected $728 on the second day and $885 on the third day.So there has been an increase in money collected. Percent increase is given by dividing the difference in values by the actual value multiplied by 100.

% increase = (difference in values / initial value) × 100

% increase = (885 - 728)/ 728 × 100 = 157/728 × 100 = 21.565%.

This is rounded off to 21.6%.

8 0

3 years ago

How many balloons does each animal get

Snowcat [4.5K]

Giraffe needs 2 balloons while the poodle requires 1 balloon each.

7 0

3 years ago