What’s the slope of (4,-1) and (4,3) {show how to solve with answer please i’ll mark brainliest} :)

Chris and Dave and Ed share £720 between them. Chris receives £90 more than Dave. The ratio of Chris's share to Dave's share is

jolli1 [7]

Answer:

Ratio of Ed's share : Dave's share = 4 : 5

Step-by-step explanation:

Total amount shared = £720

Let us assume that Dave receives = £m

So, Chris's share = £90 + m

Also, Chris's share : Dave's Share = 7: 5

⇒ $\frac{90 + m}{m} = \frac{7}{5}$

Here, solving for m , we get : 5(90 + m) = 7m

or, 450 + 5m = 7m

⇒ 2m = 450, ⇒ m = 225

So, Dave's Share = m = £225

Chris's share = £90 + m = 225 + 90 = £ 315

Hence, Ed's share = Total - ( sum of Dave's and Chris's share)

= 720 -( 315 + 225) = £180

So, ratio of Ed's share : Dave's share = £180 : £225

or, Ratio of Ed's share : Dave's share = 4: 5

7 0

4 years ago

Simplify the following: 3x(-2x^2+x-4)

DENIUS [597]

Answer:

-6x³+3x²-12x

Step-by-step explanation:

6 0

4 years ago

Can someone explain?

Lady_Fox [76]

Answer:

translation, because you are moving it. rotation is when you are modifying the degrees. translation is moving it where ever on the x or y axis.

if you want me to break it down even further with non confusing math words, just let me know !

Step-by-step explanation:

8 0

3 years ago

John bought 10.95 kg of rice. He put the rice in 5 containers. What is the

givi [52]

Answer:

2.19kg

Step-by-step explanation:

10.95/5= 2.19 kg per container

6 0

3 years ago

Read 2 more answers

You are testing a claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds. You

dedylja [7]

Answer:

There is sufficient evidence to support the claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds

Step-by-step explanation:

We shall need to formulate the hypotheses but first we need to understand the claim in context of this question. The claim is that the standard deviation of time all women spend washing their hair in the morning is 15 seconds. In mathematical notation, this claim can be written as follows;

σ = 15

Clearly the claim contains an equality sign and thus it qualifies to be our null hypothesis;

H0: σ = 15

The complement of the above hypothesis will be our alternative hypothesis;

Ha: σ ≠ 15

We are then informed that the initial conclusion of the test fails to reject the null hypothesis. In short this implies that we fail to reject the claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds since this claim is our null hypothesis. If we fail to reject a claim in hypothesis testing, this implies that there is sufficient evidence to support the claim. Therefore, there is sufficient evidence to support the claim that the standard deviation of time all women spend washing their hair in the morning is 15 seconds

8 0

3 years ago