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3 years ago

Evaluate 3x−4 when x=7.

Mathematics

2 answers:

Free_Kalibri [48]3 years ago

8 0

Answer:

Step-by-step explanation:

3(7)-4=17

Goshia [24]3 years ago

4 0

Answer:

It is 17

Step-by-step explanation:

Simplify the expression.

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DE =8 CM DE = 4 CM DE = 10 CM DE = 6CM

Svetradugi [14.3K]

Answer:

just add

Step-by-step explanation:

8 0

2 years ago

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15-m=22-8m solve for m

Stella [2.4K]

I hope this helps you

3 0

3 years ago

Help I'll give you 100 points

Dvinal [7]

✏ Answer:

$y=-9$

Step-by-step explanation:

$2-\frac{1}{8}y=11+\frac{7}{8}y$

➠ Subtract 2 from both sides:-

 $2-\frac{1}{8}y-2=11+\frac{7}{8}y-2$

$-\frac{1}{8}y=\frac{7}{8}y+9$

➠ Subtract 7/8y from both sides:-

 $-\frac{1}{8}y-\frac{7}{8}y=\frac{7}{8}y+9-\frac{7}{8}y$

$-y=9$

➠ Divide both sides by -1:-

 $\frac{-y}{-1}=\frac{9}{-1}$

$y=-9$

OAmalOHopeO

✎--------------------------

7 0

2 years ago

Read 2 more answers

Three numbers a;b; 9; ... are in geometric sequence. If 1 is subtracted from the first term then

kenny6666 [7]

if a b 9 are in GP

b÷a = 9 ÷ b

b^2 = 9a

if a - 1 b 9 are in AP

2b = a+8

b = a+8÷2

substitute

b is equal to a + 8 by 2 in b square equal to 9 a

(a+8÷2)^2 = 9a

a^2+16a+64 = 36a

a^2 -20a +64 =0

(a-16) (a-4) =0

a= 16 or a=4

when a=16 b= 12

when a=4 b= 6

Value of a and b are given above

6 0

3 years ago

Doug regularly mows his neighbor's lawn. Last month, Doug's neighbor paid him $55 for 6 hours of mowing. Is this situation most

nasty-shy [4]

Solution:

we are given that

Last month, Doug's neighbor paid him $55 for 6 hours of mowing.

we have been asked that

Is this situation most likely a proportional relationship?

yes..its as proportional relationship.

Because the amount that Doug get is $55 for 6 hours

It mean for each hour Doug get is $\frac{55}{6}$ $

It mean if you increase the number of hours then the number of dollars get paid also increases. Hence the given situation is most likely a proportional relationship.

8 0

3 years ago