1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vladimir1956 [14]
3 years ago
12

Train a has a speed of 15 miles per hour greater than that of train

Mathematics
1 answer:
dem82 [27]3 years ago
8 0
150 mil - 120 mil = 30 mil
30 mil / 15 mph = 2 hr
120 mil / 2 hr = 60 mph
150 mil / 2 hr = 75 mph
Train A: 75 mph
Train B: 60 mph
You might be interested in
(2+√3)+(4-√3)<br><img src="https://tex.z-dn.net/?f=%20" id="TexFormula1" title=" " alt=" " align="absmiddle" class="latex-formul
murzikaleks [220]

<u>E</u><u>x</u><u>p</u><u>l</u><u>a</u><u>n</u><u>a</u><u>t</u><u>i</u><u>o</u><u>n</u><u> </u><u>:</u>

________________________________

<u>Given:</u>

(2+√3)+(4-√3)

<u>To Find:</u>

Evaluate the expression

<u>Solution:</u>

<u>⇨</u><u>Step 1:</u>

Remove the parentheses

(2+√3)+(4-√3)

When there is + or no sign in front of an expression in parentheses, the expression remains the same

= 2 + √3+ 4-√3

<u>⇨</u><u>Step 2:</u>

Cancel the opposite terms √3 and -√3

"Two numbers are opposites if they have the same absolute value but different signs"

= 2 + 4

<u>⇨</u><u>Step 3:</u>

Add the numbers

= 6

<u>Hence (2+√3)+(4-√3) = 6</u><u>.</u>

6 0
2 years ago
What is the area of a rectangle with a length of 12in and a hight of 4.5 in
IgorC [24]
54in squared because to get the area you have to use this equation LxWxH
6 0
3 years ago
Solve pls brainliest<br><br> And the option is for all 3 of them
SCORPION-xisa [38]

Answer:

a). associative property <u>4</u> + (7+0) = (4+7) + 2

b). commutative property <u>4</u> + 6 = 6 + 4

c). identity property <u>8</u> + 0 = 8

8 0
2 years ago
Read 2 more answers
Evaluate the surface integral. ??s (x2 y2 z2 ds s is the part of the cylinder x2 y2 = 4 that lies between the planes z = 0 and z
kondor19780726 [428]
The surface S can be parameterized by

\mathbf r(\theta,z)=(2\cos\theta,2\sin\theta,z)

where 0\le\theta\le2\pi and 0\le z\le2. Then the surface integral can be computed with

\displaystyle\iint_S(x^2+y^2+z^2)\,\mathrm dS
\displaystyle=\int_{\theta=0}^{\theta=2\pi}\int_{z=0}^{z=2}(4\cos^2\theta+4\sin^2\theta+z^2)\|\mathbf r_\theta\times\mathbf r_z\|\,\mathrm dz\,\mathrm d\theta=\dfrac{128\pi}3
6 0
3 years ago
Solve each problem and decide which is the best of the choices given.
Nikitich [7]
55 is the answer !!!!
3 0
3 years ago
Read 2 more answers
Other questions:
  • In △ABC, point P∈ AB is so that AP:BP=1:3 and point M is the midpoint of segment CP . Find the area of △ABC if the area of △BMP
    15·2 answers
  • Plz help me answer this
    5·1 answer
  • The flower shop has 40 times as many flowersin one cooler as Julia has in her banquet. The cooler has 120 flowers.how many flowe
    11·2 answers
  • How do you know if 5/9 is bigger then 11/20
    5·1 answer
  • COLLEGE MATH!!! PLS HELP!
    15·1 answer
  • A small tree is beginning to lean. The owner decides to set up a tension wire to straighten the tree’s growth. The owner chooses
    9·1 answer
  • 4u^2 - 15u + 18 = 0​
    15·1 answer
  • Please help last question please!!! I don’t know it
    12·2 answers
  • A semicircle and a quarter circle are attached to the sides of a rectangle as shown.
    6·2 answers
  • Mr. Hann is trying to decide how many new copies of a book to order for his students. Each book weighs 6 ounces .Which ordered p
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!