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erastovalidia [21]
3 years ago
12

Can someone pleaseee help!!!

Mathematics
1 answer:
krok68 [10]3 years ago
3 0

Answer:

Step-by-step explanation:

use known angles and rules to find unknown values

vertical angles (pairs of angles on opposite sides of an intersection) are equivalent

supplementary angles (angles found next to each other on a line) add up to 180 degrees

opposite interior angles are equivalent

And I don't remember the name of this kind of angle, but angle 1 and 10 are equivalent because they are found on the same "location"

using these rules you can find all missing angles.

1= 75

2=180-75=105

let me know if you need more help than this

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AFLATI 2 NUMERE STIIND CA AL DOILEA NUMAR ESTE DE 7 ORI MAI MARE DECITPRIMUL IAR SUMA DINTRE DUBLUL PRIMULUI NUMAR SI TRIPLUL CE
postnew [5]

Answer:

The numbers are 20 and 140

Step-by-step explanation:

<u><em>The question in English is</em></u>

Find 2 numbers knowing that the second number is 7 times greater than the first, and the sum between the double of the first number and the triple of the second is 460

Define the variables

Let

x ----> the first number

y ----> the second number

we know that

y=7x -----> equation A

2x+3y=460 ----> equation B

Solve the system of equations by substitution

Substitute equation A in equation B

2x+3(7x)=460

solve for x

2x+21x=460

23x=460

x=20

<em>Find the value of y</em>

y=7x  ----> y=7(20)=140

The numbers are 20 and 140

6 0
3 years ago
HELP ME PLEASE!! LOTS OF POINTS
WARRIOR [948]

Answer:

all rational

Step-by-step explanation:

find the square root then add to fraction

down below is a cheatsheet.

8 0
2 years ago
Please solve for me and give me a caculator where i can find out how to do this
tekilochka [14]
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4 0
3 years ago
Find the degree of the angles whose sine is -1/2 (that's a fraction)
Akimi4 [234]
I think is first one
8 0
3 years ago
15 boys are needed to build a wall in 40 days how many boys are required to build the wall in 30 days​
bagirrra123 [75]

Step-by-step explanation:

40 days = 15 boys

1 day = 15/40 = 3/8

therefore,

30 days = 3/8 × 30

= 11.1/4 boys or 11.25boys

5 0
2 years ago
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