Johnathan can jog 3 2/5 miles in 7/8 hour. Find his average speed in miles per hour

Two teams of workers were scheduled to produce 680 parts in a month. The first team produced 20% more parts than planned and the

UNO [17]

1.2a+1.15b=(680+118)=798 and a+b=680,

Solving for a from the second equation we get: a=680-b

Using 680-b for a in the first equation we get:

1.2(680-b)+1.15b=798

816-1.2b+1.15b=798

816-0.05b=798

-0.05b=-18

b=360, and since a=680-b

a=320

So the a team was supposed to produce 320 parts and the b team was supposed to produce 360 parts...

check...

320*1.2+360*1.15=680+118

384+414=798

798=798

6 0

3 years ago

Read 2 more answers

A man receives an annual increase of #30000 and after a period of 10 years service, the man has the salary of #1014. Find his in

Paladinen [302]

I think you intended writing #30 as his pay rise instead of #30000. I solved the problem using #30 as his annual pay rise.

Answer:

The man's initial salary was #714

Step-by-step explanation:

Extracting the key information from the question:

*** A man got a pay raise for 10 years.

*** His current salary is #1,014

*** He gets a pay raise of #30 annually.

*** We are simply required to calculate his initial salary before he started receiving pay rise.

Now, To calculate his initial salary before he started receiving pay rise, let us denote that initial salary that we are currently unaware of by "a".

Since his salary as at today is #1,014 and he has also received this pay rise of #30 for 10 years, we can calculate his initial salary before he started receiving pay rise every year with the following equation:

a + 30(10) = 1014

That is -

Initial salary + [pay rise × number of years] = current salary.

a + 30(10) = 1,014

a + 300 = 1014

a = 1014 - 300

a = #714

Therefore the man's initial salary was #714

7 0

3 years ago

Rihanna planned a rectangular courtyard for a park and made a scale drawing using inches as the unit of measurement. She origina

Romashka [77]

Answer: One inch represented 3 feet in the first scale, but now 1 inch now represents 4 feet in the second scale.

7 0

3 years ago

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PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!

Nadya [2.5K]

Answer: B

<u>Step-by-step explanation:</u>

x³ - 3x² + 16x - 48 = 0

→ x²(x - 3) + 16(x - 3) = 0

→ (x² + 16) (x - 3) = 0

→ (x² - (-16)) (x - 3) = 0

→ (x - 4i)(x + 4i)(x - 3) = 0

→ x - 4i = 0 x + 4i = 0 x - 3 = 0

→ x = 4i x = -4i x = 3

2 imaginary roots and 1 real root

6 0

3 years ago

A student took a survey of the class. There are 42 students in the class. The student surveyed favorite foods. 10 said hamburger

8_murik_8 [283]

Answer:

52.38%

Step-by-step explanation:

Given that,

Total number of students in the class is 42

Out of 42, 10 like hamburgers, 22 like pizza, 8 like french fries, and 2 like salad.

We need to find the percentage of the class chose pizza. There are 22 student who like to have pizza. Required percentage is given by :

$P=\dfrac{22}{42}\times 100\\\\P=52.38\%$

So, 52.38% of students chose pizza.

7 0

3 years ago