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3 years ago

35 points!!!I need help on these questions it’s a part of a common assessment.

Mathematics

2 answers:

lawyer [7]3 years ago

7 0

I agree with the person above

pashok25 [27]3 years ago

4 0

Answer:

1) 4

2) y <= 9

3) NO SOLUTION

4) 24

5) 5 cards

Step-by-step explanation:

1st pic) 2x + 7 = 15

2x + 7 = 15

-7 -7

2x = 8

divide by 2 to isolate x

x = 4

2nd pic) y - 3 <= 6

y - 3 <= 6

+3 +3

y <= 9

3rd pic) x + 0.5 = x + 6

x + 0.5 = x + 6

-0.5 -0.5

x = x + 5.5

NO SOLUTION

4th pic) 5m + 10 <= 130

5m + 10 <= 130

-10 -10

5m <= 120

divide by 5 to isolate the m

m <= 24

5th pic) 2c - 8 > 0

2c - 8 > 0

+8 +8

2c > 8

divide by 2 to isolate the c

c > 4

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Bernardo is converting a fraction, StartFraction a Over b EndFraction, to a percent. Both a and b are whole numbers and not equa

anyanavicka [17]

Answer:

$Percent = \frac{100a}{b}\%$

Step-by-step explanation:

Given

$\frac{a}{b}$

Required

Convert to fraction

To do this, we simply multiply the fraction by 100%

This gives:

$Percent = \frac{a}{b} * 100\%$

$Percent = \frac{a * 100}{b}\%$

$Percent = \frac{100a}{b}\%$

The expression cannot be further simplified.

Take for instance the fraction is: $\frac{2}{5}$

Using the same analysis, the percentage would be:

$Percent = \frac{2}{5} * 100\%$

$Percent = \frac{2 * 100}{5}\%$

$Percent = \frac{200}{5}\%$

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5 0

3 years ago

Read 2 more answers

Solve and show your work for each question...

satela [25.4K]

$0.\overline{36} = \dfrac{36-0}{99} = \dfrac{36}{99} = \dfrac{4}{11}\\\\\\0.3\overline{6}= \dfrac{36-3}{90} = \dfrac{33}{90} = \dfrac{11}{30}\\\\\\0.36 = \dfrac{36}{100} = \dfrac{9}{25}$

4 0

2 years ago

Evaluate please 2x+(−6)∙(y+1) for x=−1.5 and y=−3

Andreyy89

First, you plug your given values in. Since x is 1.5, it will be multiples by 2x to get 3.2. Since y is -3, it will be added to 1 to get -2. Finally, the two are multiplied together to get -6.4 if I am correct.

8 0

4 years ago

Read 2 more answers

the circumference of a circle c with a radius of r units is approximately given by the linear equation C=6.3r. Find two solution

Naddik [55]

Answer:

I’m sorry what grade is this ?

Step-by-step explanation:

8 0

4 years ago

Find the Surface area AND Volume of the figure. Round to the nearest hundredths.

qwelly [4]

Answer:

SA= 902.88 yd²

V = 1386.24 yd³

Step-by-step explanation:

Surface area

Since the bases are right triangles, you need to find the base of the triangle. Use Pythagorean theorem as you are given the hypotenuse and one leg.

19² = 15.2² + b²

361 = 231.04 + b²

Subtract 231.04 from both sides

b² = 129.96

Root that

b = 11.4

Now that you have the base, find the areas of the triangles and rectangles.

Triangles - (15.2*11.4)1/2 (2)

15.2*11.4 = 173.28

Rectangles - (15.2)(16) = 243.2

(16)(11.4) = 182.4

(16)(19) = 304

Add them all together and the SA equals 902.88 yd²

Volume

V = Bh

V = 1/2(15.2)(11.4)(16)

V = 1/2 (2772.48)

V = 1386.24 yd³

4 0

3 years ago