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3 years ago

So one please help just click on the picture

Mathematics

1 answer:

Vlad [161]3 years ago

6 0

That would be the SSS postulate.

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Myers balloons cost $1.25 each, and latex balloons cost $0.75 each. What equations can be used to find the number of each of bal

fredd [130]

We can use the equations m + n = 18 and 1.25m + 0.75n = 19 to find number of each balloon for Myer

SOLUTION:

Given, Myers balloons cost $1.25 each, and latex balloons cost $0.75 each. We have to find what equations can be used to find the number of each of balloon in a bunch of 18 balloons that costs $19?

Let number of myers balloons be m, and number of latex balloons be n.

Then m + n = 18 ⇒ (1)

And according to given information,

$1.25 x number of myers ballons + $0.75 x number of latex balloons = $19

⇒ 1.25m + 0.75n = 19 ⇒ (2)

Hence, we can use the equations m + n = 18 and 1.25m + 0.75n = 19 to find number of each balloon.

Now, (1) ⇒ m = 18 – n. substitute these values in (2)

(2) ⇒ 1.25(18 – n) + 0.75n = 19

22.5 – 1.25n + 0.75n = 19

1.25n – 0.75n = 22.5 – 19

0.5n = 3.5

n = 7

Then, m = 18 – 7 ⇒ m = 11.

So, 11 myers balloons and 7 latex balloons.

6 0

3 years ago

A neighborhood development that is 4 acres is to be divided into 2/3 acre lots. How many lots can be created?

mihalych1998 [28]

6 lots can be created

Solution:

Given that neighborhood development that is 4 acres is to be divided into $\frac{2}{3}$ acre lots

To find: number of lots created

From given information,

Total acres = 4

one lot = $\frac{2}{3} \text{ acres }$

So number of lots created can be found by dividing the total acres by acre of 1 lot

Thus the formula is:

$\text{ Number of lots } = \frac{\text{ total acres }}{\text{ acre of 1 lot }}$

Substituting the values we get,

$\text{Number of lots } = \frac{4}{\frac{2}{3}} = 4 \times \frac{3}{2} = 6$

Thus 6 lots can be created

6 0

4 years ago

5. Juliet has swimming lessons every 5th day and dance lessons every 3rd day. If she

meriva

Hope this helps!

C. October 15

3 0

3 years ago

Expand and combine like terms. (x+3)(x+4)

ivanzaharov [21]

Answer:

x^2 +7x+12

Step-by-step explanation:

(x+3)(x+4)

FOIL

first x*x= x^2

outer: 4x

inner:3x

Last 3*4=12

Add together

x^2+3x+4x+12

Combine like terms

x^2 +7x+12

8 0

3 years ago

Please Hurry Need Answer -2/5 + 4/5

inessss [21]

Answer:

2/5

Step-by-step explanation:

4 0

3 years ago