All categories

2 years ago

Can someone help me with 3 and 4

Mathematics

1 answer:

Nadusha1986 [10]2 years ago

4 0

Answer:

x÷3+10 (if x=15)

15÷3+10

5+10

You might be interested in

Mrs. Cashmere brought a large melon, she sees that waited 1 1/8.And gave it to her neighbor. The remaining pieces of melon waite

bixtya [17]

Answer:

0.375 pounds of melon was given away by Melanie.

Step-by-step explanation:

We are given the following in the question:

Initial weight of melon =

$1\dfrac{1}{8}\text{ pounds}$

Wait of remaining piece =

$\dfrac{6}{8}\text{ pounds}$

Pounds of melon Melanie gave away =

Initial weight of melon - Wait of remaining piece

$= 1\dfrac{1}{8} - \dfrac{6}{8}\\\\=\dfrac{9}{8}-\dfrac{6}{8}\\\\=\dfrac{3}{8} = 0.375\text{ pounds}$

Thus, 0.375 pounds of melon was given away by Melanie.

6 0

2 years ago

Solve the system by the substitution method. Show your work. 2y - x = 5 x^2 + y^2 - 25 = 0

Elza [17]

2y - x = 5
x^2 + y^2 - 25 = 0

x = 2y - 5

(2y-5)^2 + y^2 - 25 = 0
(2y-5)(2y-5) + y^2 - 25 = 0
4y^2 - 20y + 25 + y^2 - 25 = 0
5y^2 - 20y = 0
y = 0 , y = 4

x = 2y - 5 , when y = 0
x = - 5

x = 2y - 5 , when y = 4
x = 8 - 5
x = 3

6 0

3 years ago

Who can help me ! .... thanks

Tasya [4]

Given that there is no any option to choose I am going to help you according to the concepts of Congruent Triangles. Two triangles are congruent if and only if:

1. They have:exactly the same three sides
2. exactly the same three angles.

There are five ways to find if two triangles are congruent but in this problem we will use only two.

First Answer:

ASA criterion: Angle, side, angle. This means that we have two triangles where we know two angles and the included side are equal.

So:

If ∠BAC = ∠DEF and $\overline{AC}=\overline{DE}$

Then ΔABC and ΔEFD are congruent by ASA criterion.

Second answer:

SAS criterion: Side, angle, side. This means that we have two triangles where we know two sides and the included angle are equal.

$If \ \overline{AC}=\overline{DE} \ and \ \overline{BC}=\overline{DF}$

Then ΔABC and ΔEFD are congruent by SAS criterion.

4 0

3 years ago

Wendy bought a wallet for $16.99, a key case for $10.95, and a duffle bag for $15.99. Including a sales tax of 5%, what was the

SashulF [63]

The answer is $46.12

4 0

2 years ago

Read 2 more answers

Help please with this question.

Tanzania [10]

2x+3(x+1.5)=12 because y=y so you SUBSTITUTE y in for y

6 0

2 years ago