admin

2 months ago

Guest #2393122

2 months ago

**Answer:**

10 days to complete

**Step-by-step explanation:**

for mixed rate problems, the sum of each individual reciprocal rates equals the sum of the combined rate

i.e

we are given,

A's rate = 15 days to complete

Combined rate = 6 days to complete

B's rate = need to find

substituting' the given info into the equation above,

1/15 + 1/ (B's Rate) = 1/6

1 / (B's Rate) = 1/6 - 1/15 (convert right side to same denominator)

1 / (B's Rate) = 5/30 - 2/30

1 / (B's Rate) = 3/30

1 / (B's Rate) = 1/10 (taking reciprocal of both sides)

B's rate = 10 days to complete

Guest #2393123

2 months ago

**Answer:**

10 days to complete

**Step-by-step explanation:**

Question

Will give brainliest! Which of the following best describes the expression 5(x + 2)? (5 points) The sum of constant factors 5 and x + 2 The product of constant factors 5 and x + 2 The sum of a constant factor 5 and a 2-term factor x + 2 The product of a constant factor 5 and a 2-term factor x + 2

Solution 1

**Answer:**

5 is a constant. (it has no variables)

x + 2 is not a constant. It does, however, have two terms, x and 2.

(terms are separated by addition/subtraction)

This rules out a and b.

As for c... 5(x+2) implies multiplication, which would be a product, not a sum.

d. The product of a constant factor 5 and a 2-term factor x+2

15

**Step-by-step explanation:**

Question

What value would you put for In the monthly payment formula M = pr(1 +r)^n / (1 + r) -1, what value would you put for r
if the interest rate is 4.2%?
O A. 0.0035
O B. 0.42
O c. 4.2
O D. 0.0042

Solution 1

The **value **that would be put for r is; 0.042

We are given the **monthly payment formula** for present value as;

M = (Pr(1 + r)ⁿ)/(1 - r) - 1

Where;

P is **Present Value**

r is **interest rate**

n is **number of times compounded**

Now, we are told the interest rate is given as 4.2% and so we can write that; r = 4.2/100 = 0.042

Read more about **interest rates** at; brainly.com/question/1115815

Solution 2

Answer:0.004

Step-by-step explanation:

Question

Will give brainlest once two people answer! If ∠AOR is 76°, what is the measure of ∠AOS?
(This is a supplementary angle)
A.) 110°
B.) 14°
C.) 24°
D.) 104°

Solution 1

**Answer:**

D

**Step-by-step explanation:**

If the angle is 180* then you subtract the first angle from the 180*

Solution 2

The answer is D, an angle is 180 degrees. AOR is 76 degrees so you just want to subtract 76 from 180, which is 104.

Question

What are the coordinates of D' wherſ the quadrilateral is reflected across the line y = X? (1,3)
(2,4)
(3,4)
(1,1)

Solution 1

**Answer:**

What are the coordinates of D' when the quadrilateral is reflected across the line y = x?

(1,3)

(2,4)

(3,4)

this is the right one (1,1)

**Step-by-step explanation: yea**

Question

8 to the fifth power

Solution 1

**Answer:**

32,768

**Step-by-step explanation:**

8x8x8x8x8= 32768

Solution 2

**Answer:**

32786

**Step-by-step explanation:**

Question

Which expression is equivalent to 2(3x−5y+1)?
6x−10y+1
6x+10y+2
6x−10y+2
6x−5y+1

Solution 1

C. 6x-10y+2

Explanation:

2*3x=6x

2*-5y=-10y

2*1=2

Explanation:

2*3x=6x

2*-5y=-10y

2*1=2

Solution 2

**Answer:**

the answer should be 6x-10y+2

Question

While hiking, Devon's altitude rose 10 feet for every 5 minutes. After an hour of hiking, his altitude was 295 feet. Assume the relationship is linear. Find and interpret the rate of change and initial value.

Solution 1

**Answer:**

rate of change = 2 ft /min

initial value = 175 feet elevation

**Step-by-step explanation:**

we are given that his altitude rose 10 feet for every 5 min,

hence the rate of change

= 10 feet ÷ 5 min

= 2 feet/min

we are also given that he hiked for an hour and ended up at 295 feet

1 hour = 60 min.

for a rate of 2 feet / min, if he walked 60 min, he would have walked:

2 feet/min x 60 min = 120 feet.

final value = initial value + change

initial value = final value - change

= 295 - 120

= 175 feet elevation

Solution 2

**Answer:**

i only kno my grams and kilos and onces

**Step-by-step explanation:**

Question

(9 ^ 5 * 9 ^ - 9)/(9 ^ 3)

Solution 1

**Answer:**

**1/9⁷**

**Step-by-step explanation:**

(⁵⁻⁹)/(³) For the given equation

STEP:1 The negative power of 9 becomes positive as we make reciprocal of 9.

(⁵*(1/⁹))/(³)

STEP:2 The Power 5 got divided with power 9 in the numerator part gives

(1/9⁴)/9³

STEP:3 Now Solving the numerator and denominator part of the equation gives

** as** the denominator 9³ got reciprocal giving **1/9⁴⁺³. **The powers will add as the base is same i.e 9.

STEP:4 This will give the answer **1/9⁷.**

Solution 2

**Answer:**

1/9⁷

**Step-by-step explanation: hope this helps**

Question

A pizza shop charges customers based on the area of the pizza they order. The cost of a pizza in dollars can be represe by sir) - 0.10r where r is the radius of the pizza in inches. What does the constant 0.10 in the function represent?
the cost of pizza in dollars per square inch
o the area of the pizza in square inches
the diameter of the pizza in inches
the cost of the pizza in dollars

Solution 1

**Answer:**

**The correct answer is A. The cost of pizza in dollars per square inch**

**Step-by-step explanation:**

**1. Let's review the information provided to us to answer the question correctly:**

Cost of the pizza = $ 0.10 * π * r², where r = radius of the pizza in inches

**2. What does the constant 0.10 in the function represent?**

Let's recall the formula of the area of a circle, in this case, the area of the pizza:

Area = π * r², therefore the constant 0.10 that is multiplying the area of the pizza, is the cost of the pizza in dollars per square inch and the total cost is the result of the multiplication of the area by 0.10.

**The correct answer is A. The cost of pizza in dollars per square inch**

Solution 2

**Answer:**

A) the cost of pizza in dollars per square inch

**Explanation:**

Hope you have a great day!

Question

Evaluate the expression. 12 +3•8

Solution 1

**Answer:**

the answer is 36

**Step-by-step explanation:**

Solution 2

**Answer:**

15.8

**Step-by-step explanation:**

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