Sally left the city for vacation. Sara left 5 hours later going 58 mph faster to catch up.
After 4 hours Sara caught up. What was Sally's average speed.
O 72.5 mph
O 54.6 mph
0 46.4 mph
0 64.5 mph

Answers

Answer 1

Answer:46.2

Step-by-step explanation:

hope this helps


Related Questions

Solve for x: x-10= -12

Answers

Answer:

x = -2

Step-by-step explanation:

Add 10 to both sides of the equation

x−10=−12

−10+10=−12+10

Simplify

Solution:

x= -2

guys pls help me!!!!!!!

Answers

x=159⁰c (vertically opposite angles)

Please mark BRAINLIEST.

Solve.

6 open parentheses x space minus space 5 close parentheses squared space plus space 1 space equals space 19

Group of answer choices

5 plus-or-minus square root of 3

5 plus-or-minus square root of 10 over 3 end root

13 over 2

Answers

Translating the situation to a mathematical sentence, and solving, we find that the solutions are: [tex]x = 5 \pm 3\sqrt{2}[/tex]

The translation of the problem given is:

[tex](x - 5)^2 + 1 = 19[/tex]

Then, solving:

[tex](x - 5)^2 = 18[/tex]

[tex]x^2 - 10x + 25 = 18[/tex]

[tex]x^2 - 10x + 7 = 0[/tex]

Which is a quadratic equation with [tex]a = 1, b = -10, c = 7[/tex]. Then:

[tex]\Delta = (-10)^{2} - 4(1)(7) = 72[/tex]

[tex]x_{1} = \frac{-(10) + \sqrt{72}}{2}[/tex]

[tex]x_{2} = \frac{-(-10) - \sqrt{72}}{2}[/tex]  

[tex]\sqrt{72} = \sqrt{9 \times 8} = \sqrt{3^2 \times 2^3} = 6\sqrt{2}[/tex], then:

[tex]x_1 = 5 + 3\sqrt{2}[/tex]

[tex]x_2 = 5 - 3\sqrt{2}[/tex]

The solutions are [tex]x = 5 \pm 3\sqrt{2}[/tex]

A similar problem is given at https://brainly.com/question/13094243


Please help!!

Answers:
A)Triangle HGF is congruent to triangle FEH.
B) Triangle GFH is congruent to EFH
C) Angle KHE is congruent to angle KHG
D)Angle GHK is congruent to angle EFK
E)Segment EH is congruent to segment GH
F)Segment HG is congruent to FE
G)Segment FH is congruent to segment HF

Answers

Answer:

I guess HEF is congruent to GFH

But it's just guess I'm not confirm

Answer:

A.

Step-by-step explanation:

the triangle HGF is congruent to traingle FEH

Appreciate all the help :)
Which matrix multiplication is defined?

Answers

Answer:

c. BC

Step-by-step explanation:

It is the possible one

Justify each step and simplify the equation.
19+56(1/56)

Answers

Answer:

20

Step-by-step explanation:

19 + 56(1/56)

= 19 + 56 x 1/56

= 19 + 1

= 20

help me pls asap!!!!!

Answers

The 4 pack , 1 pack =0.51

The 9 pack, 1 pack = 0.52

The 4 pack is better because it's cheaper

Working simultaneously, four fudge machines complete a big order in 32 hours. All the machines at the fudge factory work at the same pace. How many hours would it take to complete the order with twice the number of working machines?

Answers

Answer:

4 Hours

Step-by-step explanation:

Let's say that the rate of the machines 1/x, because every time they complete an order, it takes them x hours. To find x, we have to add the the rates of the individual machines, which would equal the rate of the machines working together. We know that there are four machines working together at the same rate, and it took them 32 hours.

So:

1/x + 1/x + 1/x + 1/x = 1/32

1/4x = 1/32

4x = 32

x = 8

Thus, the rate of the machines is 1/8.

Now we have to find the time of the order with only half of the machines working together. This time, we don't know the combined rate, so I'll substitute it for y.

1/8 + 1/8 = 1/y

1/4 = 1/y

y = 4

The time taken to complete it is 4 hours.  

HERE IS YOUR ANSWER MATE

HAVE A GREAT DAY AHEAD

LOVE FROM INDIA

Graph the linear equation y = -2x -1

Answers

(hope this helps) :)

Step-by-step explanation: in the picture

please give me a brainliest answer

answer this pleaseeeeee ill give brainliest What is an equation of the line that passes through the points (-6, 3) and (-5, 2)?

Answers

Answer:

y-3=-1(x+6)

Step-by-step explanation:

I gotchu

brainliest tho?

Pleasehelp!!!!!!!!!! I'll mark Brainliest!!!!!!!!!!!!!!!!
Explain if possible!

A physicist working in a large laboratory has found that light particles traveling in a particle accelerator increase velocity in a manner that can be described by the linear function -4x+y=15, where x is time and y is velocity ion kilometers per hour. Use this function to determine when a certain particle will reach 30 km/hr.

Answers

Answer:

it will take the certain particle 15/4 (unit of time) to reach 30 km/hr

Input 30 as for y and solve the equation.

Step-by-step explanation:

Since y is kilometers per hour and the question is asking for how long it takes for a certain particle to reach 30 km/hr, you input 30 for y and solve for x.

-4x + y = 15

-4x + (30) = 15

subtract 30 from both sides

-4x = -15

divide -4 from both sides

x = 15/4

it will take the certain particle 15/4 (unit of time) to reach 30 km/hr

Can somebody answer this?

Answers

Answer:

55

Step-by-step explanation:

20-9 = 11 then 5x11=55

5(t - 9) + 12

So then you need to use the distributive property, multiply 5 to t and 5 to -9.

Like this:

5t - 45 + 12

Then combining like terms, -45 and 12 are like terms because don’t have any letter.

5t - 33

So this it’s the answer I think that it’s correct. Hope this can help you.

Write an expression for each of the following:

a. the sum of 6 and z

b. the difference between 20 and x

c. 8 less than the quotient of x divided by 6

d. x increased by 5 divided by 4

Answers

Answer:

6 + z

20 - x

x/6 - 8

5x/4

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer:

a.6+z

b.22-x

c.8-x÷6

d.x+15÷4

Proportional quantities are always in the same _______________.

Answers

Answer:

unit

Step-by-step explanation:

proportion are always in same unit

e.g 100m/50m = 1m/2m

! ! ! Angles ! ! !
(worth ten points)
~
Javier wants to prove that triangle MNP is similar to triangle RSP.
What missing piece of information does Javier need to prove that the triangle MNP is similar to triangle RSP by the Angle-Angle Similarity Postulate?
~
A.) Javier needs to know the measure of angle P.
B.) Javier needs to know the measure of angle M.
C.) Javier needs to know the measure of angle S.
D.) Javier needs to know that segment MN is parallel to segment SR.
~

Answers

Answer:

its a

Step-by-step explanation:

:)

equivalent equation to 3/50-x/50=7/50

Answers

Answer:

x=-4

Step-by-step explanation:

Multiply both sides by 50 and you get

3-x =7,

so x= -4

A rental car agency charges $240 per week plus 0.25 per miles to my car how many miles can you travel in one week for 432.50​

Answers

432.5-240= 192.50

192.50/.25=770miles

Which number is less than 8/3​

Answers

Answer:

A I belive

Step-by-step explanation:

Just divide the top number with the bottom

Two trains leave the station at the same time, one heading east and the other west. The eastbound train travels at 95 miles per hour. The westbound train
travels at 85 miles per hour. How long will it take for the two trains to be 432 miles apart?
Do not do any rounding.

Answers

Answer: 2.4 hours

Explanation:

85x + 95x = 432

To solve you combine like terms. The like terms are 85x and 95x

85x + 95x = 180x

Now you have

180x = 432

Now divide by 180

432 divided by 180 is 2.4

X= 2.4

I think that’s how you do it

Identify the divisor: 2844/45=63.2

Answers

Answer:2844 is divisor of 1

2844 is divisor of 2

2844 is divisor of 3

2844 is divisor of 4

2844 is divisor of 6

2844 is divisor of 9

2844 is divisor of 12

2844 is divisor of 18

2844 is divisor of 36

2844 is divisor of 79

2844 is divisor of 158

2844 is divisor of 237

2844 is divisor of 316

2844 is divisor of 474

2844 is divisor of 711

2844 is divisor of 948

2844 is divisor of 1422

2844 has 17 positive divisors

Step-by-step explanation:

My fingers...

How many solutions does this nonlinear system of equations have?
A. 1
B. 4
C. 0
D. 2

Answers

Answer:

A

Step-by-step explanation:

Answer:

its 2

Step-by-step explanation:

Find the unit rate: 6 children from 2 families.

Answers

Answer: For every 1 family there is 3 children.

Step-by-step explanation:

A teacher chooses two students in a class of 15 girls and 10 boys. The students are randomly chosen. What is the probability that the teacher chooses two girls?
1. 3/5
2. 3/7
3. 7/12
4. 7/20

Answers

Answer:

15/25 which simplifies to 3/5 which is the first answer

Step-by-step explanation:

Classify each triangle by its angles and sides.

ABE

BEC

DEF

CDF​

Answers

Answer:

scalene right

isosceles obtuse

equilateral equilateral

scalene acute

Help help help help help help whelp

Answers

Y = -2x - 6

Use the same slope. Since the point intersects (0,-6), the y-intercept is 0.

Answer:

y = -2x - 12

Step-by-step explanation:

since they are asking for a parallel line, the slope will be the same:

in this case:

-2

now, we are given a point that the line goes through: (-6,0)

x is -6, y is 0

knowing all of these things, solve it:

0 = -2*(-6) + b

0 = 12 + b

b = -12

the equation of a line is y = mx +b

so:

y = -2x - 12

Drag all of the steps necessary into the box to find the product of 2.7 x 6.4 using partial products.
2.0 X 6.0 = 12
2.0 x 4.0 = 8
2.0 x 0.4 = 0.8
0.7 x 0.6 = 0.42
0.7 x 6.0 = 4.2
0.7 X 4.0 = 2.8
0.7 X 0.4 = 0.28

Answers

Answer:

2.0 x 6.0 = 12

2.0 x 0.4 = 0. 8

0.7 x 6.0 = 4.2

0.7 x 0.4= 0.28

Step-by-step explanation:

The product of 2.7 x 6.4 = 17.28

If you add all those up in the answer I provided, they too equal 17.28.

Answer:

the correct answer is... 2

.

0

×

0

.

4

=

0

.

8

0

.

7

×

6

.

0

=

4

.

2

0

.

7

×

0

.

4

=

0

.

28

2

.

0

×

6

.

0

=

12

Step-by-step explanation:

The area of a rectangular field is 3400 m² and its length is 68 m. Find-
(i) its breadth.
(ii) the distance covered by a man in going 5 times around the field.​

Answers

here is the answer hope it help you

breadth is 50mDistance covered

If the perimeter of the rectangular field is 236, the distance covered by the man is 236* 5 = 1180

We use the analysis of variance rather than the t ratio when more than two groups are involved because: _________________

a. it is less time-consuming to make the necessary calculations.
b. it decreases the likelihood of making a Type I error.
c. the more statistical tests conducted, the more likely sampling error may cause statistically significant findings.
d. all of these answers are correct.

Answers

Answer: B

Explanation: I’ve taken this test before and got it right :)

Number of College Faculty The number of faculty listed for a variety of private colleges that offer only bachelor’s degrees is listed below. Use these data to construct a frequency distribution with 7 classes, a histogram, a frequency polygon, and an ogive. Discuss the shape of this distribution. What proportion of schools have 180 or more faculty?

Answers

Answer: Number of College Faculty The number of faculty listed for a variety of private colleges which offer only bachelor’s degrees is listed below. Use these data to construct a frequency distribution with 7 classes, a histogram, a frequency polygon, and an ogive. Discuss the shape of this distribution. What proportion of schools have 180 or more faculty? 165 221 218 206 138 135 224 204 70 210 207 154 155 82 120 116 176 162 225 214 93 389 77 135 221 161 128 310 Source

WILL GIVE BRAINLIEST. determine the rule for the table and complete it.

Answers

Answer:

see explanation

Step-by-step explanation:

From the table

1 → - 2 ⇒ 1 - 3

2 → - 1 ⇒ 2 - 3

3 → 0 ⇒ 3 - 3

The rule is subtract 3 from the input to obtain output , then

4 → 4 - 3 = 1

n → n - 3 ← is the general rule for the table

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