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2 years ago

Help me please I beg

Mathematics

1 answer:

likoan [24]2 years ago

7 0

Answer:

a) x=25+0.06y

b)x=25+0.06*30=£26.80

c)x=25+0.06*200=£37

d)x=25+0.06y ; 43=25+0.06y ; 43-25=0.06y ; 18=0.06y ; y=18÷0.06 ; y=300 messages

Step-by-step explanation:

aaaaaa hope theyre correct

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Ratio and simplify the ratio helpp

drek231 [11]

1: -4/1
2: 1/2
3: 1/4
4: -4/1

I hope those r the correct answers

8 0

3 years ago

Identify the intercepts of the circle (x-5)^2+(y+12)^2=169

Allisa [31]

Step-by-step explanation:

The x-intercept is the point where the graph touches the x-axis, which means y=0. So let's set y=0 in your equation, and we receive

(x-5)^2 + (0+12)^ = 169

which means

(x-5)^2 = 25

Solve this, and get x=10 or x=0.

This means the x-intercepts are (10,0) and (0,0).

Try doing the same for y.

3 0

3 years ago

Read 2 more answers

kwasi thought of a number, multiplied it by7/2 and added 16 to the results.if the final answer was 30.what number did he think o

ziro4ka [17]

Answer:

Step-by-step explanation:

represent the number he thought of with x

$\frac{7}{2} x + 16 = 30$

multiply through with the LCM which is 2
$2 \times \frac{7}{2}x + 16 \times 2 = 30 \times 2$
$7x + 32 = 60$
$7x = 60 - 32$
$7x = 28$
$\frac{7x}{7} = \frac{28}{7}$
$x = 4$

7 0

3 years ago

Tylan sent 3809 text messages in January. In February he sent 3115.

Lera25 [3.4K]

Answer:

Ummmm what’s the question?

Step-by-step explanation:

I will edit after you tell me what your question is.

Btw God bless you.have a great day!

7 0

3 years ago

Read 2 more answers

Which line shows theINITIAL error in volume work?

aliina [53]

In step 2, V = $\frac{4}{3}(3.14)(37.5)$ show the error in volume work.

Solution:

Given data:

The steps shows it is sphere.

Radius of the sphere = 12.5

The value of π = 3.14

Volume of the sphere = $\frac{4}{3} \pi r^3$

Step 1:

$$V=\frac{4}{3} (3.14)(12.5)^3$

$$V=\frac{4}{3} (3.14)(12.5)(12.5)(12.5)$

Step 2:

$$V=\frac{4}{3} (3.14)(1953.125)$

Step 3:

$$V=\frac{4}{3} (6132.81)$

Step 4:

V = 8177.08 cubic units

This is the correct solution.

But in the given options, in step 2, 12.5 is multiplied by 3.

That is not the correct step. You have to do 12.5 × 12.5 × 12.5.

Hence in step 2, V = $\frac{4}{3}(3.14)(37.5)$ show the error in volume work.

7 0

3 years ago