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2 years ago

13

Help I’m in 5th 14 question

1 answer:

shutvik [7]2 years ago

3 0

You would be right with 26 because the absolute value of -30 is 30 then you subtract 56-30 and get 26 which is the remaining temp you need to get to 56.

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Solve for y- 4y−3=5y+2

Anastaziya [24]

Y=<span><span>−5/8 which is the answer to the equation
To check plug in the y value and see if it equals out</span></span>

6 0

3 years ago

Read 2 more answers

Write the standard form of the equation of the line through the given point with the given slope. Through (-2,5), slope =-4

AleksandrR [38]

Answer:

$\huge\boxed{4x+y=-3}$

Step-by-step explanation:

The point-slope form of an equation of a line:

$y-y_1=m(x-x_1)$

<em>(x₁, y₁)</em><em> - point on a line</em>

<em>m</em><em> - slope</em>

<em />

We have

$m=-4,\ (-2,\ 5)\to x_1=-2,\ y_1=5$

Substitute:

$y-5=-4(x-(-2))\\\\y-5=-4(x+2)$

Convert to the standard form

$Ax+By=C$

$y-5=-4(x+2)$ <em> use the distributive property</em>

$y-5=(-4)(x)+(-4)(2)$

$y-5=-4x-8$ <em>add 5 to both sides</em>

$y-5+5=-4x-8+5$

$y=-4x-3$ <em>add 4x to both sides</em>

$4x+y=-4x+4x-3\\\\4x+y=-3$

3 0

3 years ago

PLEASE HELP!!! PLEASE!!!

irina [24]

Answer:

Average speed = $\frac{(x+y)}{2}$ miles per hour

Step-by-step explanation:

Formula to calculate the average speed of an object is,

Average speed = $\frac{\text{Total distance covered}}{\text{Time taken to cover this distance}}$

If I travel with the speed of x mph for t hours,

Total distance covered = Speed × Time

= $x\times t$

= $xt$ miles

Similarly, if I travel with the speed y mph for t hours,

Total distance covered = $yt$ miles

Total distance covered by me = $(xt+yt)$ miles

Total time taken to cover this distance = $t+t$

= $2t$ hours

Therefore, expression for the average speed will be,

Average speed = $\frac{xt+yt}{2t}$

= $\frac{(x+y)t}{2t}$

= $\frac{x+y}{2}$ miles per hour

7 0

3 years ago

Puis traveled one-quarter of the journey to his destination. He still has to cover 24km to reach the third-way mark. How many ki

sertanlavr [38]

Answer:

The distance Puis still have to travel to reach his destination is 72 km.

Step-by-step explanation:

The given parameters about Puis journey are

Distance covered by Puis = 1/4 of total distance

Distance remaining for Puis to complete the journey = 3/4 of the journey

Distance of Puis from the third-way (central) mark = 24 km

Therefore;

Distance from 1/4 of journey to 1/2 of journey = 24 km

Hence, 1/2 - 1/4 = 1/4 of the journey = 24 km

Which gives Total distance covered by Puis = 24 km

Total distance of the journey = 4 × 24 km = 96 km

The distance Puis still have to travel to reach his destination = 96 - 24 = 72 km.

3 0

3 years ago

how is 0.00023 written in scientific notation? a. 23 x 10–5 b. 2.3 x 10–4 c. 2.3 x 104 d. 0.23 x 10–3

Annette [7]

Answer: $2.3\times10^{-4}$

Step-by-step explanation:

We know that Scientific notation is a way to write a very large or a very small number in the product of a decimal form of number [generally between 1 and 10] and powers of ten.

Given number : 0.00023

In scientific notation $0.00023=2.3\times\frac{1}{10000}=2.3\times10^{-4}$

Therefore, In scientific notation $0.00023=2.3\times10^{-4}$

7 0

3 years ago

Read 2 more answers