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Brums [2.3K]
3 years ago
13

Solve this equation 1 . B/-7 = 4

Mathematics
2 answers:
weqwewe [10]3 years ago
8 0

Step-by-step explanation:

B/-7 = 4

Cross multiple

-7×4 = B

-28 = B

borishaifa [10]3 years ago
4 0

Answer:

-28

Step-by-step explanation:

First, multiply 4*-7= -28.

You're done. B=-28

Hope this helps!

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Find the value of R so the line that passes through each pair of points has the given slope ( -12, R ), ( 5 , -3), m = 2
KengaRu [80]

Answer:

-37

Step-by-step explanation:

1) to find the equation of the given line (its slop-interception form is y=mx+i, where m - slop, i - interception):

a) y=2x+i, where m=2;

b) it is possible to calculate the value of 'i' after the substitution the point (5;-3) into the equation y=2x+i:

-3=2*5+i; ⇒ i= -13;

c) the equation of the given line is y=2x-13.

2) to calculate the value of 'R':

if to substitute the point (-12;R) into the equation y=2x-13, then

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5 0
3 years ago
Please answer this I need it for a test please
salantis [7]

Answer:

20

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
at a conference for 500 people, 20% of the participants are french, 50% are americans, 5% are germans, and are of other national
avanturin [10]
The number of French participants is 20\%\cdot 500 = \frac{20}{100} \cdot 500 = 100.
4 0
4 years ago
Read 2 more answers
Here is a less obvious example of a linear function. Imagine putting a rope around the Earth. Make it nice and snug. Now add 33
cluponka [151]

Answer:

A person who has height less than 5.2521 m can walk under the rope without hitting his/her head.

Step-by-step explanation:

Radius of earth = R

Length of rope around Earth = Circumference of Earth = 2πR

Now add 33 m to the length of the rope that means to increase the circumference

C = 2πR+33

Now,

C = 2πR'

⇒2πR' = 2πR+33

In order to find the height we need to find difference of the radii

⇒2πR'-2πR = 33

\\\Rightarrow R'-R=\frac{33}{2\pi}\\\Rightarrow R'-R=5.2521\ m

So, a person who has height less than 5.2521 m can walk under the rope without hitting his/her head.

8 0
3 years ago
Since 20% or 1/5, is ___, there will be ___ word problems on the test
VARVARA [1.3K]

Answer:

10

10

Step-by-step explanation:

One fifth of fifty is 10.

3 0
3 years ago
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