All categories

4 years ago

7.

Mathematics

1 answer:

ra1l [238]4 years ago

5 0

Step-by-step explanation:

if n=5

5-10+9(5)-3

-5+45-3

45-8=37

if n=-9

-9-10+9( -9)-3

-19-81-3=-103

You might be interested in

Help! Please show work. -14-12x=-3(4x-8)

defon

Answer:

no solution

Step-by-step explanion

there is no solution since the x's cancel out

3 0

4 years ago

#15 Fill in the missing term in<br> the pair of equivalent<br> ratios.<br> 48:30 = 8: _

lutik1710 [3]

Answer:

use the same number to divide 48 and 30 into the simplest number

5 0

3 years ago

Read 2 more answers

The eastern continental trail is 15 times longer than the Erie canal way trail. The combined length of the hiking trails is 5,76

Lena [83]

The length of eastern continental trail is 5400 miles and length of erie canal trail is 360 miles.

Step-by-step explanation:

Given,

Combined length of both trails = 5760 miles

Let,

x be the length of eatern continental trail.

y be the length of Erie canal trail.

According to given statement;

x+y=5760 Eqn 1

x = 15y Eqn 2

Putting value of x from Eqn 2 in Eqn 1

$15y+y=5760\\16y=5760$

Dividing both sides by 16

$\frac{16y}{16}=\frac{5760}{16}\\y=360\\$

Putting y=360 in Eqn 2

$x=15(360)\\x=5400$

The length of eastern continental trail is 5400 miles and length of erie canal trail is 360 miles.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

6 0

3 years ago

While flipping a weighted coin, Latrell gets 4 heads and 2 tails. Based on experimental probability, how many of the next 3 flip

zaharov [31]

Answer: 2 heads

Step-by-step explanation:

First, write the experimental probability as a fraction in simplest form.

P(heads)

heads

total

heads

heads+tails

4+2

The experimental probability is

We can predict the outcome of the second set of trials by assuming that the ratio will be the same as in the first set of trials. Write a proportion by setting the two ratios equal to each other, then solve.

(33)

(33) Multiply both sides by (33)

= 3n Simplify

= n Divide both sides by 3

Based on experimental probability, Latrell should expect 2 of the next 3 flips to come up heads.

Questions

answered

Time

elapsed

00 22 05

HR MIN SEC

SmartScore out of 100

Need a break?

7 0

3 years ago

What is the area of this figure?

kotegsom [21]

Break the shape into smaller rectangles and solve for there areas. Then add the areas together to get the total area of the figure. See the picture below where I solved the problem

3 0

3 years ago