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snow_lady [41]
3 years ago
8

Determine whether x=1 and y=10 is a solution to the equations

Mathematics
1 answer:
Kay [80]3 years ago
4 0

Answer:

They are not solutions

Step-by-step explanation:

To see if it is correct we have to substitute the variables for the numbers given.

x+3=30

1+3≠30

2x-y=9

2·1-10≠9

So, these solutions would be incorrect.

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Guys someone please help with this if you're good at math
attashe74 [19]
Your answer would be
y = -1/5x + 6
6 0
4 years ago
if Afsheen can read 39 pages of a book in half an hour how much will it take her to finish the book that is 1287 pages​
Assoli18 [71]

<u>We are given:</u>

Afsheen can read 39 pages in 30 minutes

<u>Time taken by Afsheen to read 1287 pages:</u>

Time taken to read 1 page:

Time taken to read 1 page = time taken to read 39 pages / 39

Time taken to read 1 page = 30 minutes / 39

Time taken to read 1 page = 0.77 minutes

Time taken to read 1287 pages:

Time taken to read 1287 pages = Time taken to read 1 page * 1287

Time taken to read 1287 pages = 0.77 * 1287

Time taken to read 1287 pages = 991 minutes OR 16.52 hours <em>(Approx)</em>

3 0
3 years ago
Read 2 more answers
George spun a 6 sided spinner that had colors blue, red, white, yellow, black, and purple. She landed on blue-3 times, red-4-tim
STALIN [3.7K]

Answer:

\frac{2}{81}

Step-by-step explanation:

Step 1

List the experimental probabilities of each color using the first letter of that color. The spinner is spun 18 times The probabilities are listed below. P(blue)=3/18, P(red=4/18), P(white) =3/18, P(yellow)=2/18, P(black)=5/18, P(purple)=1/18

Step 2

The second step is to calculate the required probability given the information in step 1. The probability that George will spin a red and then a yellow is obtained by multiplying the probability that he spins a red and the probability that he spins a yellow. This calculation is shown below,

P=P(red)\times P(yellow)=\frac{4}{18} \times \frac{2}{18} =\frac{8}{324} =\frac{2}{81}.

The correct answer is  \frac{2}{81}

6 0
3 years ago
This year there was 25% fewer sunny days than last year. What is the number of sunny days this year?
FrozenT [24]

Answer:

The number of sunny days this year = 0.75x

where,  x is the sunny days in last years.

Step-by-step explanation:

Given - This year there was 25% fewer sunny days than last year.

To find - What is the number of sunny days this year?

Proof -

Let us assume that,

The total number of sunny days last year = x

Given that,

This year there was 25% fewer sunny days than last year.

i.e this year total sunny days = 100 - 25 = 75 %

So,

we get

If there were x sunny days last year,

Then,

This year Total sunny days = 0.75x

4 0
3 years ago
Trying to help my nephew with math been so long I forget how to do it . Arrange the numbers in increasing order. 8.08, 8.081, 8.
sasho [114]
So they all start with '8.0'so we can cross out that part and we are left with
8, 8.1, 9, 0.8
so 8.1 is more than 8 because it has '0.1' more than 8

9 is greater than 8
0.8 is less than all of them so

the order from smallest to greatest (when we put the 8.0 back in) is

8.008, 8.08, 8.081, 8.09
5 0
3 years ago
Read 2 more answers
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