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4 years ago

13

Cant figure it out. Help please!

1 answer:

murzikaleks [220]4 years ago

5 0

For question 3, you needn't worry about the number of total students asked. The question is really just asking you what's 45% as a fraction, which is 9/20. This is because 45% = 45/100, divided by 5 = 9/20. For question 6, just substitute in the values. So you do 4(7 × 4 - 3 × -7), which gives you 4(28 - -21). Two minuses make a plus, so it's just asking you to do 4 × 49 (because 28 + 21 = 49). The answer is 196.

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zmey [24]

Answer:

Part 1) The inequality that represent this situation is $5(x+7)^{2} \geq1,050$ or $5x^{2}+70x+245 \geq1,050$

Part 2) Yes, 8 inches is a reasonable width for his tablet

Step-by-step explanation:

Part 1)

Let

L -----> the length of the screen television

W ----> the width of the screen television

x ----> the width of Andrew's tablet

we know that

$L=5W$ ------> equation A

$W=x+7$ ----> equation B

The area of the television is

$A=LW$ -----> equation C

Substitute equation A and equation B in equation C

$A=5(x+7)(x+7)$

$A=5(x+7)^{2}$

$5(x+7)^{2} \geq1,050$

$5(x^{2}+14x+49) \geq1,050$

$5x^{2}+70x+245 \geq1,050$ ------> inequality that represent this situation

Part 2) Determine if 8 inches is a reasonable width for his tablet

For x=8 in

Substitute in the inequality

$5(8+7)^{2} \geq1,050$

$5(15)^{2} \geq1,050$

$1,125 \geq1,050$ -----> is true

therefore

Yes, 8 inches is a reasonable width for his tablet

3 0

3 years ago

A company uses tow vans to transport workers from a free parking lot to the workplace between 7:00 and 9:00 a.m. one van has 6 m

sladkih [1.3K]

The large van has 23 seats and the small van has 17 seats

7 0

3 years ago

What is this answer? Pls

Ilia_Sergeevich [38]

Answer:

The correct function for this table is A Linear

Enjoy Brainly,

Homepage10

Step-by-step explanation:

7 0

4 years ago

Please help it due really soon...thx

Mama L [17]

Answer:

what is klm

Step-by-step explanation:

3 0

3 years ago

The cost of two tables and three chairs is $705. If the table costs $40 more than the chair,find the cost of the table and the c

Nadusha1986 [10]

Answer:

the cost of the table is $\$165$

the cost of the chair is $\$125$

Step-by-step explanation:

Let

x-----> the cost of the table

y----> the cost of the chair

we know that

$2x+3y=705$ -----> equation A

$x=y+40$ -----> equation B

substitute equation B in equation A

$2(y+40)+3y=705$

$2y+80+3y=705$

$5y=705-80$

$y=625/5$

$y=\$125$

Find the value of x

$x=y+40$ ----> $x=125+40=\$165$

8 0

3 years ago