This is the question: -10.7 + (- 3.5 )

Answer:

Step-by-step explanation:

Distribute

3x - 3 - 8 = 4 +4x + 5

Combine like terms

3x-4x = 4 + 5 + 8 + 3

-x = 20

x = -20

Answer:

x = -20

Step-by-step explanation:

3(x - 1) - 8 = 4(1 + x) + 5

3x - 3 - 8 = 4 + 4x + 5

3x - 11 = 4x + 9

3x = 4x + 20

-x = 20

x = -20

Best of Luck!

Answer:

y=-1/5x+1

Step-by-step explanation:

divide both sides by 5: 1/5x+y=1

subtract 1/5x so y is alone since slope-intercept has y=mx+b: y=-1/5x+1

The slope-intercept form of the line x + 5y = 5 is y = - (1/5)x - 1.

We know lines have various types of equations, the general type is

Ax + By + c = 0, and equation of a line in slope-intercept form is y = mx + b.

Where slope = m and b = y-intercept.

the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.

Given, An equation of a line in the standard form x + 5y = 5.

We know the equation of the slope-intercept of the line is y = mx + b.

Therefore, The slope-intercept form of the equation x + 5y = 5 is,

5y = - x - 5.

y = - (1/5)x - 1.

learn more about lines and slopes here :

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Answer:

B and D

Step-by-step explanation:

Have a nice week!

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Answer:

BD = 12

Step-by-step explanation:

Answer:

25.2

Step-by-step explanation:

14litres : 70 km

     ?     : 126km

126/70 = 1.8

14 x 1.8 = 25.2

25.2 litres of petrol

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Answer:

25.2 litres

Step-by-step explanation:

using proportion

let the amount of petrol we are searching for be x

14litres/xlitres =70km/126km

cross multiply

70x=126×14

70x =1764

x=1764/70

x=25.2litres

Answer:

1341.75

Step-by-step explanation:

Answer:

Step-by-step explanation:

A

Answer:

NGC 1427A has no general shape, so it is an irregular galaxy. U has a bulge in the center and arms, so it is a spiral galaxy. They are similar in that both contain plenty of dust and gas. Both also have active star-forming sites.

Step-by-step explanation:

NGC 1427A is an irregular galaxy with no discernible shape. The spiral galaxy U has a bulge in the middle and arms.

A galaxy is a massive clump of gas, dust, and billions of stars and their solar systems bound together by gravity.

The first galaxies were discovered in the 17th century by Charles Messier, who had no idea what they were at the time.

Messier, a proficient comet viewer, noticed many more fuzzy objects in the sky that he knew were not comets.

We would discover 64 galaxies the size of the Milky Way in a cube that now holds one galaxy the size of the Milky Way.

NGC 1427A is an irregular galaxy because it lacks a general shape. U is a spiral galaxy, since it contains a bulge in the center and arms.

They are comparable in that they both have a lot of dust and gas. Both have active star-formation sites.

Hence, they are comparable in that they both have a lot of dust and gas.

To learn more about the galaxy refer to the link;

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Answer:

The scientific notation will be Letter D

Answer:

C = km

k = 95

C = 665

Step-by-step explanation:

Calories burned varies directly to miles run.

Let

C = calories burned

m = miles

C = km

Dustin burns 190 calories for every 2 miles he runs

C = 190

m = 2

C = km

190 = k2

Divide both sides by 2

k = 95

equation for the direct variation.

C = km

Find how many calories Dustin will burn after running 7 miles.

C = ?

m = 7

k = 95

C = km

C = 95 × 7

= 665

Answer:

a+9b+10

Step-by-step explanation:

use foil method

Answer:The answer is 2191/370

Answer:

5.92297297297...

Step-by-step explanation:

First, I made it into a fraction and multiplied the numerator and denominator by 10: [tex]\frac{43.82}{7.4}[/tex]

Then I put it into long division format and solved.

So, these are the following steps that I did:

1. Divide 438 by 74 to get 5.

2. Multiply the quotient digit left (5) by the divisor 74.

3. Subtract 370 from 438, add a decimal point to the solution, and divide to find the remainder.

In the end, I got 5.92297297297... [ 297 will continue to repeat so this is a repeating decimal. ]

Answer:

The answer is A

Step-by-step explanation:

-3/8 divided by -1/4 = -1.5 (in fraction form it is -1 1/2)

Answer:

Irrational

Step-by-step explanation:

As pi=3.141...

pi+24=27.141....

Answer:

x=9.4

b=77.2

Step-by-step explanation:

a+b=180

as they are interior angles

(6x-48)+(4x+38)=180

6x-48+4x+38=180

6x+4x+38-48=180

10x+86=180

10x=180-86

10x=94

x=94/10

x=9.4

b=(4x+38)

b=4x+38

b=4(9.8)+38

b=39.2+38

b=77.2

Answer:

Mrs Morgan spent 30% of her earnings.

Step-by-step explanation:

The percentage of her earnings did Ms. Morgan spent is calculated as:

Amount spent/ Total amount of money× 100

$15/$50 × 100

= 30%

Therefore, Mrs Morgan spent 30% of her earnings.

The new disney ears looked lovely.

Answer:

h = -8/5

Step-by-step explanation:

21 = -4h +13-h

simplify the right side

21 = -5h + 13

subtract 13

21 = -5h + 13

-13          - 13

8 = -5h

divide by -5

8 = -5h

/-5  /-5

[tex]-\frac{8}{5} = h[/tex]

Answer:

-y² - 4y - 6

Step-by-step explanation:

Step 1: Write expression

5y² - 6y - 11 - 6y² + 2y + 5

Step 2: Combine like terms (y²)

-y² - 6y - 11 + 2y + 5

Step 3: Combine like terms (y)

-y² - 4y - 11 + 5

Step 4: Combine like terms (constants)

-y² - 4y - 6

2x-8=12 2x=12+8

2x=20 x=20÷2

x=10

Answer:

10

Step-by-step explanation:

1/3 (2x-8) = 4​

1/3 ×2x - 1/3 ×8 = 4

2x/3-8/3=4

2x-8 /3=4

2x-8=4×3

2x-8=12

2x=12+8

2x=20

x=20/2

x=10

Answer:

She would need 11.1 liters of gas.

Answer:

0.571

Step-by-step explanation:

Answer:

0.571

Step-by-step explanation:

divide 4 and 7

Answer:

T=2

Step-by-step explanation:

5x2=10

10+2=12

Could I please have BRAINLIEST.

Answer:

So we reject the null hypothesis and accept the alternate hypothesis that rats learn slower with sound.

Step-by-step explanation:

In this data we have

Mean= u = 18

X= 38

Standard deviation = s= 6

1) We formulate the null and alternate hypothesis as

H0:  u = 18  against           Ha : u > 18  One tailed test .

2) The significance level alpha = ∝= 0.05 and  Z alpha has a value ± 1.645 for one tailed test.

3)The test statistics used is

Z= X- u / s

z= 38-18/6= 3.333

4) The calculated value of z = 3.33 is greater than the z∝ = 1.645

5) So we reject the null hypothesis and accept the alternate hypothesis that rats learn slower with sound.

First we set the criteria for determining the true of value of the variable. That whether the rats learn in less or more than 18 trials.

Then we find the value of z for the given significance value given and the test about to be checked.

Then the test statistic is determined and calculated.

Then both value of z and z alpha re compared. If the test statistics falls in the rejection region  reject the null hypothesis and conclude alternate hypothesis is true.

The figure shows that the calulated z value lies outside the given z values

Answer:

16

Step-by-step explanation:

First, we solve for x.

[tex]2x+7=-21\\2x=-28\\x=-14[/tex]

We now evaluate 2-x, plugging in -14 for x.

[tex]2-x\\2-(-14)\\2+14\\16[/tex]

12.5

2x+7=-21

2x+7-7=-21-7

2x=-28

2x/2=-28/2

x=-14

2-x=?

2-(-14)

2+14=16

Hope this helped!

Answer:

[tex]p2 = \frac{p1v1}{v2} [/tex]

Step-by-step explanation:

You want to get P2 alone

P1V1=P2V2

V2 V2

P1V1=P2

V2

Answer:

if its on a coordinate plane the formula would be:

√(2x-1x)²+(2y-1y)²

Step-by-step explanation:

so if the coordinates were

A= (-3,2)

B= (4,2)

C= (4,-1)

D= (-3,-1)

for A to B it would be

√(4 - (-3)² + (2-2)²

√(7)² + (0)²

√(7·7) + (0·0)

√49+0

√49

or

7

I hope the explanation helped

Answer:

She needs $30.

Step-by-step explanation:

170 minus 140 is 30.

Answer:

X = 3   Y = -3

Step-by-step explanation:

The arrow is on X = 3 and the other side of arrow is on Y = -3

Hope I helped

Answer:

Step-by-step explanation:

Hopes this helps!

Answer:

25%

Step-by-step explanation:

9.0 - 7.2 = 1.8

(1.8 ÷ 7.2) × 100 = Answer %