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Gennadij [26K]
3 years ago
11

Find two numbers with a sum of 20 and a difference of 6.

Mathematics
2 answers:
KonstantinChe [14]3 years ago
7 0

Answer:

13 and 7

Step-by-step explanation:

x + y= 20 -----(1)

x - y= 6 --------(2)

From equation 1,

x= 20-y

To substitute in equation 2, We say:

(20-y) - y=6

20 - 2y = 6

-2y = 6-20

2y = 14

Therefore, y = 7

To find x,

We substitute y in equation 1

Therefore, x + 7= 20

x = 20-7

Therefore x = 13.

This means the two numbers with a sum of 20 and a difference of 6 =

13 and 7.

Alina [70]3 years ago
4 0

Answer:

7 and 13

Step-by-step explanation:

x+y=20

x-y=6

2x=26, x=13, 13+7=20, 13-7=6.

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The ratio of boys to girls on a swimming team is 4 to 3. The team has 35 members how many are girls
diamong [38]

Answer:

See below:

Step-by-step explanation:

Hello! I hope you are having a nice day. My name is Galaxy and I will be helping you today!

We can solve this problem in two steps, one being Comprehension and another being Solving. I'll start off with Comprehension.

Comprehension

We can see that based of the problem, for every batch of 7 kids, there are 4 boys and 3 girls. That means that we can split the total, which is 35, into groups of 7 and seeing how many girls and boys there are.

Now that we know what we need to figure out and what to do, we can begin solving.

Solving

So, for every group of 7 kids there are 4 boys and 3 girls. We can divide 35 by 7 to find how many of these identical groups there are.

35 \div 7=5

We know that there are 5 such groups of 4 boys and 3 girls each. Therefore, we can multiply 4 and 3 by 5 as there are 5 such groups to find our total.

4*5=20\\

We know there are 20 boys.

3*5=15

We know there are 15 girls.

We can check this by seeing if this adds up,

15+20=35?\\35=35

Therefore, our answer is there are 15 girls and 20 boys.

5 0
3 years ago
Read 2 more answers
What is the y-intercept of this table? i dont understand it please help thank you.
Fed [463]

Answer:

-0.4

Step-by-step explanation:

you just take 2 of them to find it

7 0
3 years ago
What is the cosine for a angle of 15 degrees?
elena-14-01-66 [18.8K]

Answer:

0.965925826 = 0.97

Step-by-step explanation:

just put in the calculator >>> cos(15)

6 0
3 years ago
If a shape is being dilated with a scale factor of 5 will be larger or smaller than original figure
Valentin [98]

Answer:

Larger

Step-by-step explanation:

It will Be larger because a factor lower then 5 will make the dilatetion become smaller

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3 years ago
The municipal swimming pool in Nicetown has three different ways of paying for individual open swimming. Todd is trying to decid
balandron [24]
Sllope intercept form is y=mx+b
m is the slope , b is the y itnercept

so early pay
cost=70 flat rate
x=infinity
the equation would be y=70

deposit pluss
you have to pay an initial one time payment of 15 so
y=mx+15
then 4 dollars per day
4 times number of days
y=4x+15

daily pay is 6 dollars per day so 6 times number of days
y=6x



1.
a. y=70
b. y=4x+15
c. y=4x
6 0
3 years ago
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