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Hunter-Best [27]
3 years ago
7

Solve *Solve theequations4x + y + 3z = 8-2x + 5y + z = 43x + 2y + 4z = 9​

Mathematics
1 answer:
Fynjy0 [20]3 years ago
7 0

Answer:

4x+y+3z=8

is still the same answer

-2x+5y+z= 4

3x+2y+4z=9.

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Pam pays $8.00 for 1 yard of fabric. How much would the fabric cost per inch? Round your answer to the nearest cent, if necessar
Aloiza [94]
$8 per yard of fabric
1 yard is equal to 3 feet
8 divided by 3 = 2.67(rounded)
$2.67 per foot of fabric
1 foot is equal to 12 inches
2.67 divided by 12 =0.22(rounded)
1 inch of fabric cost $0.22
3 0
3 years ago
Step by step explanation please
galina1969 [7]

Two equal triangles

2(1/2×b×h)

=2(1/2×8×10)

= 80 {cm}^{2}

Three rectangles

=3(l×h)

=3(18×8)

=3(144)

432 {cm}^{2}

Total Surface area

80 {cm}^{2}   +  432 {cm}^{2} \\ 512 {cm}^{2}

8 0
3 years ago
If x=3 ,then 5x - 9=6 conclusion:x=3 <br> true or false
saul85 [17]
(5 x3)-9=6 its true
5 0
3 years ago
Read 2 more answers
The owner of a computer repair shop has determined that their dailyrevenue has mean $7200 and standard deviation $1200. The dail
meriva

Answer:

The required probability is 0.0855

Step-by-step explanation:

Consider the provided information.

The daily revenue has mean $7200 and standard deviation $1200.

\mu_{\bar x}=7200

\sigma=1200

The daily revenue totals for the next 30 days will be monitored.

\sigma_{\bar x}=\frac{\sigma}{\sqrt{n}}

\sigma_{\bar x}=\frac{1200}{\sqrt{30}}=219.089

As we know Z=\frac{\bar x-\mu_{\bar x}}{\sigma_{\bar x}}

Substitute \bar x=7500, \mu_{\bar x}=7200\ and\ \sigma_{\bar x}=219.089 in above formula.

Z=\frac{7500-7200}{219.089}=1.3693

From the standard normal table P( Z >1.3693) = 0.0855

Hence, the required probability is 0.0855

7 0
3 years ago
Suppose a population of 40 crickets doubles in size every month. the function gives the population after x months. how many cric
Andreyy89
The function is given by:
f(x)=40(2)^x
where x is in months
he population after 3 years will be found as follows:
x=3 years=3×12=36 months
thus the population after 3 years will be:
f(36)=40(2)^36
f(36)=2.748779069×10^12

3 0
3 years ago
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