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2 years ago

Solve the equation. 5y - 10 = -25

Mathematics

3 answers:

algol [13]2 years ago

8 0

Answer: 5y-10= -25

5y -10+10= -25 +10

Step-by-step explanation:

mixas84 [53]2 years ago

8 0

Answer:

Y= (-3)

Step-by-step explanation:

(5)(-3)= -15

-15-10= -25

Y= -3

Jgunnels172 years ago

0 0

y=-3 is ur answer.

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Triangle ABC is the pre-image and triangle DFE is the image.

anzhelika [568]

Answer:

Scale factor = ½

Step-by-step explanation:

The original image is the preimage = ∆ACB

The new image is the image = ∆DFE

The scale of factor of dilation = image/preimage = DF/AC

DF = 6 cm (given)

AC = 12 cm (given)

Plug in the values into the equation to find the scale factor of dilation:

Scale factor = 6/12

Scale factor = ½

6 0

3 years ago

Rewrite as a simplified fraction.<br> \large{2.1\overline{6} = ?}2.1 <br> 6<br> =?

slamgirl [31]

Answer:

Note that

0.16666...is equivalent to 1/6

Step-by-step explanation:

We can use the sum of fractions to write out the decimal:

For this particular question, we can see that

0.16666...is the fraction 1/6, therefore

the given decimal

2.16666...=2+1/6=13/6

6 0

3 years ago

A study claims that the mean age of online dating service users is 40 years. Some researchers think this is not accurate and wan

Mademuasel [1]

Answer: $H_0:\mu=40$

$H_0:\neq40$

Step-by-step explanation:

A null hypothesis is a hypothesis where a researcher generally try to disprove, it says that there is no statistically significant relationship between the two variables .
An alternative hypothesis says that there is a statistical significance between two variables.

Claim 1. : Mean age of online dating service users is 40 years.

i.e. $\mu=40$ , since it has equals sign so we take this as null hypothesis.

Claim 2. : Mean age of online dating service users is not 40 years.

$\mu\neq40$

⇒ Null Hypothesis : $H_0:\mu=40$

Alternative hypothesis : $H_0:\neq40$

5 0

3 years ago

9. Choose whether the number is rational or irrational

lutik1710 [3]

The square root of 169=13 so it is rational

4 0

3 years ago

Consider the expression 40+24 . Find the greatest common factor of the two numbers and use the distributive property to rewrite

Margarita [4]

Hi there!

$\large\boxed{8(5+3)}}$

The greatest common factor of 40 and 24 is 8.

8 goes into 40 5 times:

8 goes into 24 3 times.

We can rewrite this expression for distribution using the amount of times 8 goes into both numbers:

8(5 + 3)

Using this, we get:

8(5) + 8(3) = 40 + 24.

3 0

3 years ago