The difference of two positive numbers is 13. The larger number is nine less than twice the smaller number. Find
the numbers.
The numbers are

Answer:

60 seconds.

Step-by-step explanation:

We have been given that Maria train can go around the track in 10 seconds. Alma train can go around the track in 12 seconds.

To find the number of seconds after which both trains will cross the finish line together the first time we will find LCM of 10 and 12. LCM will give us the smallest positive integer that is divisible by both 10 and 12.  

Multiples of 10 are: 10, 20, 30, 40, 50, 60, 70,...    

Multiples of 12 are: 12, 24, 36, 48, 60, 72, 84,..  

We can see that least common multiple of 10 and 12 is 60, therefore, it will take 60 seconds for both trains to cross the finish line together the first time.

Answer:

1260

Step-by-step explanation:

Answer:

The selling price is $294

Step-by-step explanation:

5/100 (280)

0.05 * 280 = 14

5% of 280 equals 14.

To find the selling price we have to add the tax to the price.

$14 + $280 = $294

The selling price is $294

Answer:

x+3/5

Step-by-step explanation:

f(x)=x-3/5

y=f(x) let

y=x-3/5

put x at y and y at x

then,

x=y-3/5

y=x+3/5

f(x) inverse is x+3/5

Answer:

/////////

Step-by-step explanation:

Answer:

9.472 kilograms

Step-by-step explanation:

Start at (0,0). To get to the other point, you must move up 8 units and move to the right 6 units.

slope = rise/run = (change in y)/(change in x) = 8/6

Or you could use the slope formula

m = (y2-y1)/(x2-x1)

m = (8-0)/(6-0)

m = 8/6

Normally I would reduce, but your teacher has decided not to.

8/6 reduces to 4/3 when you divide both parts by 2.

Answer:

x=24

Step-by-step explanation:

x=180-156

x= 24

Answer: n = 27

Step-by-step explanation: n in (-oo:+oo)

(1/3)*n = 9 // - 9

(1/3)*n-9 = 0

1/3*n-9 = 0 // + 9

1/3*n = 9 // : 1/3

n = 9/1/3

n = 27

Answer:

50

Step-by-step explanation:

180 - 90+40 = 50

Answer:

Answer: 50 degrees

Step-by-step explanation:

using this knowledge, you can make the following equation:

90 + 40 + x = 180

130 + x = 180

now subtract 130 from both sides.

x = 180 - 130

x = 50°

Answer:

C. 12 feet.

Step-by-step explanation:

The lamp post has a shadow that's twice as long as it'a actual height. The tree's shadow is 24 feet long, so it would be 24/2, which is 12 feet.

Answer: 125 minutes to make tests for five classes, $2388 in two months, and 4800 women to 3,600 men

1 class: 25 minutes

5 classes: [tex]25[/tex] × [tex]5[/tex] [tex]= 125[/tex] minutes

[tex]\frac{3582}{3}=\frac{x}{2}[/tex]

[tex]\frac{7164}{3}=\frac{3x}{3}[/tex]

[tex]2,388 = x[/tex]

[tex]x= 2,388[/tex]

[tex]\frac{8}{6}=\frac{x}{3600}[/tex]

[tex]\frac{28,800}{6} =\frac{6x}{6}[/tex]

[tex]4,800=x[/tex]

[tex]x=4,800[/tex]

Answer:

x=-7

Step-by-step explanation:

x-8=-15

add eight to both sides since it's negative

Answer:

D) Emerson must earn at least a 94 on his final test to earn an “A” in his class

Step-by-step explanation:

We calculate this using mean in this format:

Test Scores / # of Test ≥ 90 (which is an A)

Substitute:

(92 + 86 + 88)+ x / 4 ≥ 90

Add:

266 + x / 4 ≥ 90

Get Rid of the Denominator:

(4) 266 + x / 4 ≥ 90 (4)

Multiply:

266 + x ≥ 360

Isolate x (Subtract 266 From Both Sides):

x ≥ 94

This means that x (His final test score) has to be greater than (above) or equal to 94. A term for greater than or equal to is “at least.” Hope this helps :)

Answer:

10

Step-by-step explanation:

Answer:

10!

Step-by-step explanation:

If you need to find how many millimeters are in a certain amount of cm's, you can multiply the length (amount of cm) by 10, since there are 10 millimeters in a cm.

Answer:

2

Step-by-step explanation:

Answer:

220000

Step-by-step explanation:

2000x110=220000

Why does he have so man though???

Answer:

200 cards

Step-by-step explanation:

Given: Jackson has 2,000 baseball cards in his collection. Gabe has  as many baseball cards in his collection as Jackson.

To Find: How many baseball cards does Gabe have in his collection.

Solution:

Total number of cards Jackson has in his collection

Let number of cards Gabe has =

Now,

Answer:

0.9 1.8 2.9

Step-by-step explanation:

Answer:

P is (2,1) M is (6,2) G is (5,5) L is (1,3) i think this is right anyway

Step-by-step explanation:

hope it helped!

p.s it would be cool it you would give me brainliest

Answer:

9

Step-by-step explanation:

Answer:

(3,-6)

Step-by-step explanation:

The midpoint is the halfway distance between two points.

11+(-5)/2, -7+(-5)/2=

11-5/2, -7-5/2=

6/2, -12/2=

(3, -6)

answer:

$4.24

explanation:

hope this helped <3

The value of n that makes the equation [tex](13 + 4i) + n = 0[/tex] true is (d) -13 - 4i.

The equation is given as:

[tex](13 + 4i) + n = 0[/tex]

Remove brackets

[tex]13 + 4i + n = 0[/tex]

Subtract 13 from both sides

[tex]13 - 13 + 4i + n = 0 - 13[/tex]

Evaluate like terms

[tex]4i + n = - 13[/tex]

Subtract 4i from both sides

[tex]4i -4i + n = - 13 -4i[/tex]

Evaluate like terms

[tex]n = - 13 -4i[/tex]

The equation cannot be further simplified.

Hence, the value of n is (d) -13 - 4i

Read more about complex equations at:

https://brainly.com/question/7130449

Answer:

first one D (–13 - 4i)

second B (1)

on egde

Step-by-step explanation:

Answer:

midpoint is (−6,11 over 2)

Answer:

6.2

Step-by-step explanation:

can i hae brailiezt plzz

Answer:

99

Step-by-step explanation:

You can solve it by Squaring/multiply 18 by itself and 15 by itself then subtract them both:

(18 × 18) - (15 × 15)

324 - 225

99

You could also do difference of two squares:

(x² - y²)

= (x + y) (x - y)

= (18 + 15) (18 - 15)

= (33) (3)

= 99

Answer:

Step-by-step explanation:

Evaluate

= (18)^2-(15)^2

= 324 - 225

= 99