Solve 47 = -3 + 8y.

Answer:

D

Step-by-step explanation:

1/25 is the same thing as [tex]5^{-2}[/tex]. So, u wantn to find whcih answer choice does not equal that. You can use the exponent multiplication rule, where x^a times x^b equals x^a+b.

for example, answer choice A would be 5^(3+-5) which is 5^-2.

the only choice that does not equal 5^-2 is D because it equals 5^2

Answer: D

Brainliest pls

Answer:

89.81

Step-by-step explanation:

divide 38.49 by 3 and you get 12.83

then multiply 12.83 by 7

Answer:

Step-by-step explanation:

Cost of lunch for 3 persons = $ 38.49

Cost of lunch for 1 person = 38.49 ÷ 3 = $ 12.83

Cost of lunch for 7 persons = 12.83 * 7 = $ 89.81

Answer:

1,440 degrees (10 interior angles of 144 degrees)

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

|-7|+7=14

Answer:

3y = 2x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

3y = 2x - 5 ( divide terms by 3 )

y = [tex]\frac{2}{3}[/tex] x - [tex]\frac{5}{3}[/tex] ← in slope- intercept form

with slope m = [tex]\frac{2}{3}[/tex]

Parallel lines have equal slopes , then

y = [tex]\frac{2}{3}[/tex] x + c ← is the partial equation

To find c substitute (6, 5 ) into the partial equation

5 = 4 + c ⇒ c = 5 - 4 = 1

y = [tex]\frac{2}{3}[/tex] x + 1 ( multiply through by 3 to clear the fraction )

3y = 2x + 3 ← equation of parallel line

Answer: To find the scale factor for a dilation, we find the center point of dilation and measure the distance from this center point to a point on the preimage and also the distance from the center point to a point on the image. The ratio of these distances gives us the scale factor, as Math Bits Notebook accurately states.

Step-by-step explanation:

Hope this helps!

Answer:y

=

−

6

⋅

x

−

17

Explanation:

y = mx + b Calculate the slope, m, from the given point values, solve for b by using one of the point values, and check your solution using the other point values.

A line can be thought of as the ratio of the change between horizontal (x) and vertical (y) positions. Thus, for any two points defined by Cartesian (planar) coordinates such as those given in this problem, you simply set up the two changes (differences) and then make the ratio to obtain the slope, m.

Vertical difference “y”

=

y

2

–

y

1

=

−

5

–

1

=

−

6

Horizontal difference “x”

=

x

2

–

x

1

=

−

2

–

−

3

=

1

Ratio = “rise over run”, or vertical over horizontal

=

(

−

6

1

)

=

−

6

for the slope, m.

A line has the general form of y = mx + b, or vertical position is the product of the slope and horizontal position, x, plus the point where the line crosses (intercepts) the x-axis (the line where z is always zero.) So, once you have calculated the slope you can put any of the two points known into the equation, leaving us with only the intercept 'b' unknown.

1

=

(

−

6

)

⋅

(

−

3

)

+

b

;

1

=

18

+

b

;

1

–

18

=

b

;

−

17

=

b

Thus the final equation is

y

=

−

6

⋅

x

−

17

We then check this by substituting the other known point into the equation:

−

5

=

(

−

6

)

⋅

(

−

2

)

−

17

;

−

5

=

12

−

17

;

−

5

=

−

5

CORRECT!

Step-by-step explanation:

[tex]\\ \sf\longmapsto x-8=-12[/tex]

[tex]\\ \sf\longmapsto x=-12+8[/tex]

[tex]\\ \sf\longmapsto x=-4[/tex]

Done

Answer:

Step-by-step explanation:

28.57% profit.

You're welcome.

<3

Answer:

Step-by-step explanation:

28.57%

round off to

28.6%

[tex]p-5(p+4) = p-(8-p)\\\\\implies p-5p - 20 = p-8+p\\\\\implies -4p-2p = 20 -8 \\\\\implies -6p = 12 \\\\\implies p = -2[/tex]

Answer:

y = 2x + 2

Step-by-step explanation:

→ Find the gradient

[tex]\frac{-6-6}{-4-2} =\frac{-12}{-6} =2[/tex]

→ Rewrite into y = mx + c format

y = 2x + c

→ Substitute in a coordinate pair

6 = 4 + c ∴ c = 2

→ Rewrite into y = mx + c format

y = 2x + 2

Answer:

3.69

Step-by-step explanation:

7.5x + 3.3 = 31

7.5x = 31 - 3.3

7.5x = 27.7

x = 27.7 : 7.5

x = 3.69

Answer:

The solution x = 0 means that the value 0 satisfies the equation, so there is a solution. “No solution” means that there is no value, not even 0, which would satisfy the equation.

Step-by-step explanation:

Answer:

20ft

Step-by-step explanation:

Quick reasoning: pick the ratio and start adding both values as many times as you reach the value you need: You start with 11:5, add once, you get 22:10; add again, you get 33:15. Add one final time, you get 44:20.

More rigorous: You want to see how many times the length fit in the ratio: that means dividing the length by the first term of the ratio, or 44/11 = 4. At this point you multiply the second term by the number you just found, ie 5x4= 20.

Fatima's claim is not supported by the table because, the distribution is skewed right, with a median of 0.4 field goal advantage.

From the table, the median position is calculated as:

[tex]\mathbf{Median = \frac{1}{5} th}[/tex]

[tex]\mathbf{Median = 0.2\ nd }[/tex]

The 0.2nd data falls in the 0.4 field goal category.

So, the median element is:

[tex]\mathbf{Median = 0.4}[/tex]

However, the distribution of the table are concentrated on the left.

This means that, the distribution is not uniform, instead it is skewed right.

A uniform distribution has a skewness of 0.

Hence, Fatima's claim is not supported by the table

Read more about distributions at:

https://brainly.com/question/13233983

Answer:

k = 3.5

Step-by-step explanation:

0.1 (10k - 15) =2

Distribute

1k - 1.5 = 2

Add 1.5 to each side

k -1.5 +1.5 = 2+1.5

k = 3.5

Answer:

f(x) = 0.5x.

Step-by-step explanation:

The line passes through (0,0) and the slope = 3-0/6-0 = 0.5.

Answer:

Most likely  but I would say A.

Step-by-step explanation:

Because the the student is moving 1 kilometer every 3 minutes. As he is running his distance to the finish line is decreasing so we can -1/3 x. The entire race is 5 kilometers so it would be + 5 at the end of the equation. There for the answer would be A.

Answer:

Step-by-step explanation:

Use ratios:

Find x by cross multiplication:

Answer:

+7 is the answer for this

Answer:

-3+10=7

opposite of addition is subtraction

so just do 10-3=7

(communative property used)

hopes this helps :D

Step-by-step explanation:

Answer:   x=7

Step-by-step explanation:

The value of x is 7.

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

given:

0.4x = 2.8

Now, solving for x

Dividing both side by 0.4 we get

0.4x/ 0.4 = 2.8 / 0.4

x = 28/4

x= 7

Hence, the value of x is 7.

Learn more about equation here:

https://brainly.com/question/29538993

#SPJ2

Answer:

3,080

Step-by-step explanation:

1680 miles is 3 hours then 1680 divided by 3 is how much 1 hour is

1 hour is 560 miles

560 times 5.5 is 3080

answer is 3,080 miles

Answer:

c and b should be it

Step-by-step explanation:

According to the situation given, the alternative hypothesis is:

[tex]H_1: \mu_M - \mu_F > 0[/tex]

At the null hypothesis, it is tested if males do not spend more time playing than females, that is, the subtraction of the mean time spent playing by males by the mean time spent playing by females is of at most zero.

[tex]H_0: \mu_M - \mu_F \leq 0[/tex]

At the alternative hypothesis, it is tested if they spend more time playing, that is, if the subtraction is positive.

[tex]H_1: \mu_M - \mu_F > 0[/tex]

A similar problem is given at https://brainly.com/question/25600854

Answer:

The boys play more sports.

Step-by-step explanation:

convert percents to decimals (division of 100)

0.53 x 300 = 159 girls

0.39 x 500 = 195 boys

Answer:

22

Step-by-step explanation: