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3 years ago

use benchmarks to estimate the sum 11/15 +1/8 A.about 1/2 B.about 3/4 C.about 1 D.about 1 1/2

Mathematics

2 answers:

DanielleElmas [232]3 years ago

4 0

I believe it is C. about 1

boyakko [2]3 years ago

3 0

Answer:

about 1

Step-by-step explanation:

11/15 +1/8

$\frac{11}{15} +\frac{1}{8}$

To add two fractions, make the denominators same

LCD is 15 times 8 = 120

We need to get 120 in the denominator

To get 120 in the denominator, multiply the first fraction by 8 and second fraction by 15

$\frac{11 \cdot 8}{15 \cdot 8} +\frac{1 \cdot 15}{8 \cdot 15}$

$\frac{88}{120} +\frac{15}{120}$

Denominators are same . so we add the fractions

$\frac{103}{120}$

Its approximately close to 1

Its about 1

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If x+3/3 = y+2/ 2 , then x/3 = _____.

iren [92.7K]

the question is not so clear

is it (x+3)/3 or what you have written is correct

Step-by-step explanation:

4 0

2 years ago

G=h(t) + p(c) is an equation that represents the gross pay of a server: Gross pay = hourly wage (time worked) + percent tip (cos

rusak2 [61]

Answer:

$105.5 for 16 hours at $6.59 per hour

Step-by-step explanation:

form the equation given, G=h(t) + p(c)

where G=Gross pay,

h= hourly wage

t=time worked

p=percent tip

c=cost of customer meals

we determine the gross pay by first determining the independent variables

h=$4.25, t=16 hours,

$p=15%of c\\p=\frac{15}{100}*250 \\p=37.5$

if we substitute values, we arrive at

$G=h(t)+p(c)\\G=4.25(16)+37.5\G=68+37.5\\G=105.5$

to determine the per hour gross pay we have

105.5/16

hourly gross pay,G=$6.59

3 0

2 years ago

Find the dimensions of the rectangle with area 289 square inches that has minimum perimeter, and then find the minimum perimeter

nalin [4]

<span>To minimize the perimeter you should always have a square.
sqrt(289) = 17
The dimensions should be 17 X 17

To see , try starting at length 1, and gradually increase the length.
The height decreases at a faster rate than the length increases, up until you reach a square.

Or if you want to use algebra, Say the width is 17-x
Then the length is 289/(17-x)

Now, this is bigger than 17+x, as shown here:
289/(17-x) > 17+x
289 > 289 - x^2
which is true.
so the perimeter would be bigger than 2 * (17- x + 17 + x) = 2 * (2 * 17) = 4 * 17

Again, the dimensions should be a square. 17 X 17.</span>

4 0

3 years ago

PLEASE HELP

Reil [10]

Is there a graph or anything given

6 0

2 years ago

Can someone help me please

jeyben [28]

Answer:

AA similarity

Step-by-step explanation:

Respective angles of both triangles are 40°, 50° and 90°

AA similarity is the case:

<em>If two angles of one triangle are respectively equal to two angles of another triangle, then the two triangles are similar.</em>

6 0

2 years ago