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4 years ago

2. Use the diagram below to name the following.

Mathematics

1 answer:

gogolik [260]4 years ago

5 0

Step-by-step explanation:

4 points appear-

12 lines appear..?

1 plane appears

4 collinear points.

There's 2 non-coplanar points??

4 intersections??

I hope this helped. I could be wrong, but that's how I solved it mentally.

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Nigel bought 10 pencils and 5 erasers for 8$. The price of 2

Jlenok [28]

Answer:

2 erasers cost $1.20

Step-by-step explanation:

Nigel bought 10 pencils and 5 erasers for $8.

We can write this algebraically:

10p + 5e = 8

We know that the price of 2 pencils is $1. That is $0.50/Pencil.

So, p = $0.50. Now we can plug that into out equation and find the price of one eraser:

10(0.50) + 5e = 8

5 + 5e = 8

5e = 3

e = $0.60

Now, we have the price of one eraser, $0.60, and we can multiply this by 2 to find the price of 2 erasers, which equates to $1.20.

4 0

2 years ago

2 qts for every 50 gal of water i just want to use 15 gal of water so how much do i use

Papessa [141]

The amount of qts to use for 15 gals is 0.6qts

Proportion and ratio

Ratio are written as quotient of 2 integers

Given that 2 qts for every 50 gal of water, this is written as;

2qts = 50 gals

In order to calculate for 15gal, we will have:

x = 15gals

Take the ratio

2/x = 50/15

50x = 30

x = 3/5

x = 0.6qts

Hence the amount of qts to use for 15 gals is 0.6qts

Learn more on qts to gallons here: brainly.com/question/466814

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7 0

2 years ago

Sum of (x+5) and (2x+3)

olga55 [171]

Answer:

3x+8

Step-by-step explanation:

First, we can write the sum into a mathematical expression:

The sum of (x+5) and (2x+3)

(x+5)+(2x+3)

However, we do not need the parenthesis. It is unnecesarry here as we are just adding the two parts:

x+5+2x+3

Using commutative property, we can rearrange the symbols so that the x's are with each other and the numbers are with each other:

x+2x+5+3

Now we can simplify the expression:

3x+8

Hope this helped :)

5 0

3 years ago

A family uses 12,986. 64 Swiss francs per year to pay a mortgage that requires US dollars. Approximately how much, in US dollars

lukranit [14]

Unit conversion is a way of converting some common units into another without changing their real value. The amount that is paid by the family in mortgage per month is equal to $1200.

<h3>What is Units conversion?</h3>

Unit conversion is a way of converting some common units into another without changing their real value. for, example, 1 centimetre is equal to 10 mm, though the real measurement is still the same the units and numerical values have been changed.

As it is given to us that the family uses 12,986.64 Swiss francs per year to pay a mortgage. Therefore, the amount that is paid by the family in mortgage per month can be written as,

$\text{Mortgage for a month} = \dfrac{\text{Mortgage of the family for a complete year}}{\text{Number of Months}}\\\\\\\text{Mortgage for a month} = \dfrac{\rm 12,986.64\ Swiss\ francs}{12} = 1082.22\rm \ Swiss\ francs$

Thus, the family needs to pay 1082.22 swiss francs every month in the mortgage.

Now, it is mentioned in the problem that 1 Swiss franc = 1.11 US dollars, therefore, 1082.22 swiss francs when converted to US dollars will be equal to,

$\rm 1\ Swiss\ francs = \$1.11 \\\\1082.22\ Swiss\ francs = 1082.22 \times 1.11 = \$1,201.26 \approx \$1,200$

Hence, the amount that is paid by the family in mortgage per month is equal to $1200.

Learn more about Units conversion:

brainly.com/question/4736731

8 0

3 years ago

How do you do this 3n+2+8n-9=180

siniylev [52]

Combined like terms than subtract with system of equations

4 0

3 years ago

Read 2 more answers