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liraira [26]
3 years ago
6

Could someone help me out with this problem I'm not that great at math​

Mathematics
1 answer:
VashaNatasha [74]3 years ago
4 0

Answer:

Obtuse.

Step-by-step explanation:

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On a map, Sacramento is 8 cm from San Francisco. This represents an actual distance of 91 miles. On the same map, Sacramento is
Marat540 [252]

Answer:

Sacramento is 8cm from San Francisco.

8cm in map = 91 miles

91/8 = 11.375

1cm in map = 11.375 miles

Sacramento is 7 cm away from Modesto.

7 · 11.375 = 79.625

The actual distance is 79.625 miles

4 0
3 years ago
HELP BEFORE TIME RUNS OUT!! A marble is selected at random from a jar containing 50 red marbles 20 yellow marbles and 30 green m
Nostrana [21]
There is an 80% chance that it is red or green. 
6 0
3 years ago
Two parallel lines are cut by a transveral.
Deffense [45]
The answer is 45. The explanation is that <1 and <5 are congruent or equal because they are parallel.
3 0
2 years ago
3a+20=2a+26 i needdddd helpppp solving thisssss, i forgot how to do this help
andrew11 [14]

Answer:


Step-by-step explanation:

3a+20=2a+26

-3a       -3a

20= -1a + 26

-26        -26

-6= -1a

__  ___

-1a  -1a

a=6                                                                                                                                  

5 0
3 years ago
How do you solve these two equations? Please Help!!<br>y = 2x + 160 <br>y = - 3x + 208
Archy [21]
Their are 2 main methods of solving 2 equations with 2 variables:
1) SUBSTITUTION
2) ELIMINATION
I'll show you both:

1) y = 2x + 160
y = - 3x + 208
plug what y is equal to in 1st equation into the y of the 2nd:
2x + 160 = -3x + 208
2x + 3x + 160 = -3x + 3x + 208
5x + 160 -160 = 208 - 160
5x = 48
5x/5 = 48/5
x = 48/5 = 9 3/5
now plug that x into either one of the original equations: y = -3x + 208 = -3(48/5) + 208
y = -144/5 + 208 = 1040/5 - 144/5 = 896/5
y = 179 1/5

2) add the whole equations together so as to cancel out one of the variables:
I'm choosing to eliminate the y, so we need y-y to remove the y's, I'll multiply the whole 2nd equation by -1 to make that -y
-1 (y = - 3x + 208)
-y = 3x - 208
So set it up like:
y = 2x + 160
-[y = 3x - 208]
---------------------
0 = 5x - 48
0+48 = 5x -48 +48
5x = 48
5x/5 = 48/5
x = 48/5
plug that x value into one of the original equations: y = 2x + 160 = 2(48/5) + 160
y = 96/5 + 160 = 96/5 + 800/5 = 896/5
y = 179 1/5

SO WE GOT THE SAME VALUES BOTH WAYS.
WHEN YOU SEE FUTURE PROBLEMS LIKE THESE, SOME WILL BE QUICKER BY ELIMINATION AND OTHERS BY SUBSTITUTION

6 0
4 years ago
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