3 years ago

What is the integer that represents the temperature

Mathematics

1 answer:

Lerok [7]3 years ago

6 0

The integer <span>that represents the temperature is 7.</span>

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givi [52]

Answer:

Step-by-step explanation:

x / 160 = 25/100

x / 160 = 1/4

x = 1/4 * 160

x = 40

Hope this helps!

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4 years ago

the frame of a picture is 28 cm by 32 cm outside and is of uniform width.What is the width of the frame if 192 cm2 of the pictur

natita [175]

Answer:

The width of the frame is equal to $8\ cm$

Step-by-step explanation:

Let

x-------> the width of the frame picture

we know that

$(28-2x)(32-2x)=192$

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The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

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in this problem we have

$x^{2}-30x+176=0$

$a=1\\b=-30\\c=176$

substitute in the formula

$x=\frac{30(+/-)\sqrt{(-30)^{2}-4(1)(176)}} {2(1)}$

$x=\frac{30(+/-)\sqrt{196}} {2}$

$x=\frac{30(+/-)14} {2}$

$x=\frac{30+14} {2}=22\ cm$ ----> this solution is not logic

$x=\frac{30-14} {2}=8\ cm$

The width of the frame is equal to $8\ cm$

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4 years ago

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andre [41]

C because that sign means lesser than or equal to 6

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