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Naily [24]
3 years ago
13

HURRY HELP ASAPPP Question 23 of 25

Mathematics
1 answer:
telo118 [61]3 years ago
5 0
I believe the answers would be b. and c.
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A. Fill in the boxes :
frosja888 [35]

Step-by-step explanation:

it's simple:

  • 8 tens + 19ones = 9 tens + 9 ones
  • 8 tens + 2 ones =7 tens+12 ones
  • 7 tens +25 ones = 9 tens + 5 ones
  • 70+11=80+1
  • 50+13=60+3
  • 90+13=100+3
5 0
3 years ago
In the game Kazoo, teams lose one point each time they skip a turn. They earn one point each time their team guesses correctly.
lbvjy [14]

Answer:

-8 + 6 = - 2

So the answer is - 2

5 0
3 years ago
More is coming but help help help #10 points
vovangra [49]

Answer:

Its the last one

Step-by-step explanation:

The angle R is supposed to be the letter in the middle which is known as the vertex in an angle,It leads to the angle in degrees forming a proper angle.

It not much information because its hard to explain but,hope this helps!!!.

6 0
3 years ago
A team of three students are working on a language-learning app; they need to develop 300 micro-lessons and 300 micro-tests befo
Olegator [25]

Answer: a) 15 b)

Step-by-step explanation:

Let X be the number of days:

a)

For LESSONS:

Jordan does 10 / day ( 10*X)

Marco 5 / day ( 5*X)

Junyi 5 / day ( 5*X)

For TESTS:

Jordan does 5 / day ( 5*X)

Marco 10 / day ( 10*X)

Junyi 8 / day ( 8*X)

for each they need a total of 300

a) 10X+5X+5X=300 => 20X = 300 => X = 15 days for the lessons

b) 5X+10X+8X = 300 => 23X = 300 => X = 13.04 days for the tests

so they need 15 days to finish both tasks

now if Junyi gets sick we just eliminate his contribution

a) 10X+5X=300 => 15X = 300 => X = 20 days for the lessons

b) 5X+10X = 300 => 15X = 300 => X = 20 days for the tests

so in 20 days they will finish without him

If jordan works 10 hours a day, we just replace him with 10/24

a) 10(10/24)+5X+5X= 300 => X = 29.58 days for the lessons

b) 5(10/24)+10X+8X = 300 => X = 16.51 days for the tests

so at the end to complete both tasks they need 29.58 days

4 0
3 years ago
Please help functions
katrin2010 [14]

A function is an equation or graph where each x value only has one y value. In the first image you can use the vertical line test. Take your pencil and lay it on the paper vertically. Move it across the graph. Basically if an x value has multiple y value it is not a function. The first image is not a function because all x values past zero have multiple y values for each x value. In the second image it is not A because in A the x value of 2 has a y value of 1 and 8. It is not B because the 5 has a y value of 3 and 7. It’s is not D because of the 5 again. It is C because all x values are unique.

Hope that helps

4 0
3 years ago
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