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kondor19780726 [428]

3 years ago

7

Triangle DEF is a right triangle and angles D and F are equal but are not right angles. What is the measure of angle E?

1 answer:

Andrej [43]3 years ago

5 0

If it’s a right triangle 1 side is a right angle and if those 2 sides are equal and not right angles then E needs to be a right angle and a right angle is 90 degrees so it’s D

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What decimal part of 350 is 70? (show your work)

Mumz [18]

To find decimal part of 350 and 70 we divide one by the other .

The fraction is $\frac{70}{350}$

We can reduce the fraction to its lowest form.

$\frac{7}{35}$

Dividing by common factor 10.

= $\frac{1}{5}$

Dividing by common factor 7

$\frac{1}{5} =0.2$

0.2 is the decimal part of 350 is 70

Answer to the question is 0.2

7 0

4 years ago

Read 2 more answers

Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2, and the profit

Mademuasel [1]

<u>Answer:</u>

$y = -\frac{2}{3}x + 490$

gradient = = $-\frac{2}{3}$

y-intercept = $490$

<u>Step-by-step explanation:</u>

• The slope-intercept form of an equation takes the general form:

$\boxed{y = mx + c}$ ,

where:

m = slope,

c = y-intercept.

• We are given the equation:

$2x + 3y = 1470$

To change this into the slope-intercept form, we must make y the subject:

$3y = -2x + 1470$ [subtract $2x$ from both sides]

⇒ $y = -\frac{2}{3}x + \frac{1479}{3}$ [divide both sides by 3]

⇒ $y = -\frac{2}{3}x + 490$

• Comparing this equation with the general form equation, we see that:

m = $-\frac{2}{3}$

c = $490$ .

This means that the gradient is $\bf -\frac{2}{3}$ , and the y-intercept is $\bf 490$ .

6 0

2 years ago

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B2x%7D%7Bx%2B1%7D%20%2B%5Cfrac%7B3%28x-1%29%7D%7Bx%7D%20%3D5" id="TexFormula1" title=

Luden [163]

Answer:

$x=-3$

Step-by-step explanation:

<u>Given equation</u>:

$\dfrac{2x}{x+1}+\dfrac{3(x+1)}{x}=5$

Make the <u>denominators</u> the same:

$\implies \dfrac{2x}{x+1} \cdot\dfrac{x}{x}+\dfrac{3(x+1)}{x} \cdot \dfrac{x+1}{x+1}=5$

$\implies \dfrac{2x^2}{x(x+1)}+\dfrac{3(x+1)^2}{x(x+1)} =5$

<u>Combine</u> the fractions:

$\implies \dfrac{2x^2+3(x+1)^2}{x(x+1)} =5$

<u>Multiply</u> both sides by x(x+1):

$\implies 2x^2+3(x+1)^2 =5x(x+1)$

<u>Expand</u> the brackets:

$\implies 2x^2+3(x^2+2x+1) =5x^2+5x$

$\implies 2x^2+3x^2+6x+3 =5x^2+5x$

<u>Combine</u> like terms:

$\implies 5x^2+6x+3=5x^2+5x$

<u>Subtract</u> 5x² from both sides:

$\implies 6x+3=5x$

<u>Subtract</u> 5x from both sides:

$\implies x+3=0$

<u>Subtract</u> 3 from both sides:

$\implies x=-3$

Learn more about algebraic fractions here:

brainly.com/question/27943438

brainly.com/question/27979364

5 0

2 years ago

Joy is collecting rocks. She has 3 jars and 4 buckets. There are 2 rocks in each jar and 3 rocks in each bucket. How many rocks

xxMikexx [17]

Here is a little advice use mult tke 3 jars x 2 rocks which is 6 rocks then 4 buckets by 3 rocks is 12 rocks now add 12 + 6 = that's gonna be your answer.

4 0

3 years ago

Read 2 more answers

At a school number of boys: number of girls= 11:9

vredina [299]

составим уравнение
11х=9х+124
2х=124
х=62

проверим ответ
682=558+124

тогда, общее количество детей

682+558=1240

4 0

2 years ago