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Iteru [2.4K]
3 years ago
7

Solve for x. 4.2x + 0.8x = 5*

Mathematics
1 answer:
Andrei [34K]3 years ago
6 0

Answer:

x=1

Step-by-step explanation:

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Fraction with a denominator of 10 can be written as an equivalent fraction with
AVprozaik [17]

Answer:

9/10 is 90%

Step-by-step explanation:

You just make it a percentage

5 0
3 years ago
Please help ill mark brainlyst please
kozerog [31]

Answer:

x = 8°

y = 21°

Step-by-step explanation:

27 + 3y = 90

3y = 63

y = 21°

x + 8x + 18 = 90

9x = 72

x = 8°

3 0
3 years ago
A forest ranger spots a fire from a 21-foot tower. The angle of depression from the tower to the fire is 12 degrees . To the nea
Finger [1]

Answer:

Step-by-step explanation:

98.8

7 0
3 years ago
A total of $32,000 is to invested, some in bonds and some in certificates of deposit (CDs). If the amount invested in bonds is t
Naya [18.7K]
I think all you do is $32,000 / $8,000 which is $4,000.

Meaning $4,000 will be invested in each investment, I may be wrong though.
7 0
3 years ago
Read 2 more answers
Pleasssssssseeee help
astra-53 [7]
Rates like $ per channel is a slope, "m". The added fee is a constant so it's the intercept "b".
y = mx + b

So for the first problem (9)
(a)
y = total cost in dollars
x = number of premium channels
y = 16x + 44
(b) when x = 3 channels
y = 16(3) + 44
y = 92 $

the second problem (10)
(a) every 4 years the tree grows by 12-9=3 ft
So the unit rate or slope will be 3 ft per 4 yrs, (3/4). You can see this also by solving for slope "m" using the given points (4,9) and (8,12).

x = number of years
y = height of tree in ft
y = (3/4)x + b
use one of the points to find the y-intercept "b".

9 = (3/4)(4) + b
9 = 3 + b
9 - 3 = b
6 = b
y = (3/4)x + 6

(b) when x = 16
y = (3/4)(16) + 6
y = 12 + 6
y = 18 ft
5 0
3 years ago
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