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2 years ago

Problem referred below pls help

Mathematics

1 answer:

Marrrta [24]2 years ago

7 0

Answer:

7 less than 3 times a number (X) is (3x-7), and then the sum of these two numbers means we have (3x-7)+X, and then we know this equals 109, leaving us with:

(3x-7)+x = 109

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3. Peri earned $27 for walking her neighbor's dog 3 times. If pe the same rate and earned $36, how many times did she wall neigh

Andrei [34K]

Answer:

She walked neighbor's dog 4 times.

Step-by-step explanation:

It is given that:

Peri earned $27 for walking the dogs 3 times.

Unit rate = $\frac{27}{3}$

Unit rate = $9 per dog

Now,

Peri worked at the same rate and earned $36.

Unit rate = $\frac{Total\ earning}{Dogs\ walked}$

$9 = \frac{36}{d}$

d= 36/9

d = 4

Therefore,

She walked neighbor's dog 4 times.

7 0

3 years ago

Which transformation can be used to prove that this parallelogram is symmetrical?

Evgesh-ka [11]

Is there a photo attached?

4 0

3 years ago

Read 2 more answers

Please help to solve this.<br> Find sin5x,if sinx+cosx=1,4

MrMuchimi

Answer:

Hello,

Step-by-step explanation:

we must first remember that:

$\boxed{sin(5x)=5sin(x)-20*sin^3(x)+16*sin^5(x)}\\\\$

Let say t=sin(x)

$sin(x)+cos(x)=1.4\\\\t+\sqrt{1-t^2}=1.4\\\sqrt{1-t^2}=1.4-t\ we\ square\\1-t^2=1.4^2+t^2-2.8*t\\2t^2-2.8*t+0.96=0\\\Delta=2.8^2-4*2*0.96=0.16=0.4^2\\\\t=\dfrac{2.8-0.4}{4} =0.6\ or\ t=\dfrac{2.8+0.4}{4}=0.8\\\\t^3=0,216\ or\ t^3=0,512\\\\t^5=0,07776\ or\ t^5=0,32768\\\\\boxed{sin(5x)=5*0.6-20*0.216+16*0.07776=-0,07584}\\\\or\\\\\boxed{sin(5x)=5*0.8-20*0.512+16*0.32768=-0,99712}$

8 0

3 years ago

Pls show picture of a graph and explain<br> y=− 1/4 x

-BARSIC- [3]

To find x-intercept/zero

Substitute y=0

0=-1/4x

Multiple both sides by -4

Then swap the sides of the equation x=0

8 0

3 years ago

Math for Homework

marta [7]

1.09 x 0.99 = $1.08 apples
0.99 x 1.19 = $1.18 grapes
1.29 x 1.09 = $1.41 oranges

Total bill = $3.67

7 0

1 year ago