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irina1246 [14]
3 years ago
5

Math homework help?

Mathematics
1 answer:
charle [14.2K]3 years ago
6 0
3r = 45/x= 45/x= 45 r = 45/3 = 15 mph The speed of PandD = 15 mph
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What is 34% written as a ratio?<br> A) 34:1 <br> B) 34:10 <br> C) 34:100 <br> D) 34:1000
VikaD [51]
34%/100=0.34 and that is equal to 34:100 aka 34/100.

Hoped I helped!
5 0
3 years ago
Read 2 more answers
Evaluate: 955-105 x 4 +118
drek231 [11]

Answer: −420x+1073

Step-by-step explanation:

Let's simplify step-by-step.

955−105x(4)+118=955+−420x+118

Combine Like Terms:

=955+−420x+118=(−420x)+(955+118)=−420x+1073

Answer: =−420x+1073

6 0
3 years ago
Read 2 more answers
Can you help me please I need it and this graduate
yanalaym [24]
Here is how to work the problems and write the expressions.

8 0
3 years ago
I have 54 oranges. I give 28 away and saved 5 for my family. How many oranges do I have?
ratelena [41]

Answer:

Either <u><em>26 or 21</em></u>  depending on if you count the saved oranges or not.

Step-by-step explanation:

54 - 28 = 26

54 - 28 - 5 = 21

6 0
3 years ago
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Consider the line which passes through the point P(−1,-3,5), and which is parallel to the line x=1+7t, y=2+2t, z=3+4t Find the p
bija089 [108]

The given line is parameterized by

x(t) = 1 + 7t

y(t) = 2 + 2t

z(t) = 3 + 4t

and points in the same direction as the vector

d/dt (x(t), y(t), z(t)) = (7, 2, 4)

So, the line we want has parameteric equations

x(t) = -1 + 7t

y(t) = -3 + 2t

z(t) = 5 + 4t

Solve for t when one of x, y, or z is equal to 0 - this will tell you for which value of t the line cross a given plane. Then determine the other coordinates of these intersections.

• x = 0, which corresponds to the y-z plane:

0 = -1 + 7t   ⇒   7t = 1   ⇒   t = 1/7

y(1/7) = -3 + 2/7 = -19/7

z(1/7) = 5 + 4/7 = 39/7

⇒   intersection = (0, -19/7, 39/7)

• y = 0 (x-z plane):

0 = -3 + 2t   ⇒   2t = 3   ⇒   t = 3/2

x(3/2) = -1 + 21/2 = 19/2

z(3/2) = 5 + 12/2 = 11

⇒   intersection = (19/2, 0, 11)

• z = 0 (x-y plane):

0 = 5 + 4t   ⇒   4t = -5   ⇒   t = -5/4

x(-5/4) = -1 - 35/4 = -39/4

y(-5/4) = -3 - 10/4 = -11/2

⇒   intersection = (-39/4, -11/2, 0)

8 0
2 years ago
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