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AlekseyPX
3 years ago
8

Need help with question 7 and 8 with awnser please check photo for problems

Mathematics
1 answer:
Tanzania [10]3 years ago
7 0

Answer:

7) 230mm

8) 98m

Step-by-step explanation:

7)

7x+8+6x+6+9x-4 =22x+10

if x is 10 mm, 22(10)+10 =230mm

8) perimeter of rec =2( l + w )

=2 ( 2x-5+2x+6 ) = 8x + 2

if x  is 12 metres, 8(12)+2 =98m

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Please help me with this
Ierofanga [76]

Negative 1 times the square root of 61 is -7.81

A. An integer is a whole number without decimals

If this is rounded to the nearest integer, the number is -8

B. Rounded to the nearest tenth is the first decimal place. Therefore the number would be -7.8.

5 0
3 years ago
A number that is 42% less than c.
faust18 [17]

Answer:

.58c

Step-by-step explanation:

Find 42% of c

.42c

Then subtract that from c

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7 0
3 years ago
You buy a storage rack that holds 40 CDs you have 27 CDs write an inequalityt that describes how many more cds you can buy and s
MAVERICK [17]
<span>CD's must be 40 or below, so CD's total≤ 40
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27+x=40(max)
x=(40-27)
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5 0
3 years ago
Please help freshman math much-needed
Damm [24]
You can make the equatin: y=15x+22
X is the number of weeks
Y is the total amount of money needed

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120=15x+22
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x=6.53

But the answer is 7 weeks because we have to round up so he gets paid for the whole week
5 0
3 years ago
Read 2 more answers
I need help in an hour or less pls The number N of bacteria in a refrigerated food is given by N(T ) = 20T 2 – 80T + 500, 2 ≤ T
weqwewe [10]

Answer:

The number N of bacteria in a refrigerated food is given by N(T) = 10T^2 - 20T + 600, 2 ≤ T ≤ 20 where T is the temperature of the food in degrees Celsius. When the food is removed from refrigeration, the temperature of the food is given by T(t) = 3t + 2, 0 ≤ t ≤ 6 where t is the time in hours.

Step-by-step explanation:

7 0
3 years ago
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