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Dominik [7]
3 years ago
14

The sum of two numbers is 56. Their difference is 18.

Mathematics
1 answer:
IrinaVladis [17]3 years ago
8 0
Let one number be x and the other be y.
x+y=56
x-y=18
2x=74
x=37
y=19
Hope this helped!
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Which statements are true about these lines? Select three options.
shepuryov [24]
RS is perpendicular to MN and PQ.


We can use the slopes of these lines to determine the answer.
Slope is given by the formula
m=.

Using the coordinates for M and N, we have:
m=.

Since PQ is parallel to MN, its slope will be as well, since parallel lines have the same slope.

Using the coordinates for points T and V in the slope formula, we have
m=.

This is not parallel to MN or PQ, since the slopes are not the same.
We can also say that it is not perpendicular to these lines; perpendicular lines have slopes that are negative reciprocals (they are opposite signs and are flipped). This is not true of TV either.

Using the coordinates for R and S in the slope formula, we have
m=. Comparing this to the slope of RS, it is flipped and the sign is opposite; they are negative reciprocals, so they are perpendicular.
8 0
4 years ago
Read 2 more answers
This is the last one for the morning and may be some later
kompoz [17]

Answer:

A is correct Please brainliest me

Thus, also saying that it is equivalent.

Step-by-step explanation:

The expression stated- (3m+1-m)

It also states to give a equal amount

What is equalevent expression?- Equivalent expression are those expression  that looks different but are same.

For example, 2+2 is 4 and 1 plus 3 is 4

it is different expression but the same answer.

The Expression- 3m+1-m

Simplify. How?- By adding LIKE terms.

Here- 3m+ 1 - m = (3-1) m + 1

see the same.

To conclude, 3-1) m + 1  = 2m + 1

If you’d wanna write in another way, it would be 2m + 1 can be written as m + m + 2 - 1

so a is correct

4 0
3 years ago
Suppose the age that children learn to walk is normally distributed with mean 11 months and
Alex777 [14]
Add up all the different ages that they learned to walk then divide by the total so
Let’s say
1 month + 11 months + 3 months + 6 months= 21 months divided by 4 = 5.25
5 0
3 years ago
What’s the answer to this, only if u know thanks!’
VladimirAG [237]

Answer:

120+(10+2x)=180

10+2x=60

2x=50

x=25degreeeee

Step-by-step explanation:

follow me in this app for more

7 0
3 years ago
Read 2 more answers
3/10 divided by 2/5 times 9
Lisa [10]

Answer:

its 6.75

Step-by-step explanation:

3/10 = 0.3

2/5 = 0.4

0.3 / 0.4 = 0.75

0.75 x 9 = 6.75

hope i helped

8 0
3 years ago
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