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2 years ago

Tom buys a pen holder for $5 and 10 pens for $1 each. The sales tax for the whole purchase is $3.

Mathematics

2 answers:

mr Goodwill [35]2 years ago

5 0

20% should be the answer! :)))

disa [49]2 years ago

4 0

The answer would be 20 percent.

Hope I helped, and if I did, then please feel free to vote brainliest!

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xxMikexx [17]

14.The answer is 10 Celsius

4 0

2 years ago

Courtney walks 1 mph slower than Brandi does. In the time that it takes Brandi to walk 6.5 mi, Courtney walks 5 mi. Find the spe

posledela

Answer:

Courtney's walking speed = 3.33mph

Brandi's walking speed = 4.33 mph

Step-by-step explanation:

Let x = Courtney's walking speed

then

(x + 1) = Brandi's walking speed

Time = Distance/speed

Brandi walks 6.5 mi time = Courtney walks 5 mi time

6.5/x + 1 = 5/x

Cross multiply

6.5x= 5(x+1)

6.5x= 5x + 5

6.5x - 5x = 5

1.5x = 5

x = 5/1.5

x = 3.33 mph is Courtney's walking speed

Note that:

(x + 1) = Brandi's walking speed

3.33mph + 1 = 4.33mph

Therefore,

Courtney's walking speed = 3.33mph

Brandi's walking speed = 4.33 mph

4 0

2 years ago

3. What are the coordinates of the points of tangency of the two tangent lines through the point (1,1) each tangent to the circl

VashaNatasha [74]

Answer: $y+x=2$

Step-by-step explanation:

Given

equation of circle $x^2+y^2=1$

Equation of tangent passing through (1,1)

Slope of tangent is given by differentiating equation of circle

$2x+2y\frac{\mathrm{d} y}{\mathrm{d} x}=0$

$\frac{\mathrm{d} y}{\mathrm{d} x}=\frac{-x}{y}$

at $(x,y)=(1,1)$

$\frac{\mathrm{d} y}{\mathrm{d} x}=\frac{-1}{1}$

Equation of line with slope

$m=\frac{y-y_0}{x-x_0}$

$-1=\frac{y-1}{x-1}$

$y+x=2$

7 0

2 years ago

I don’t know how to answer the question

OlgaM077 [116]

Let the partitions of the segment be 5k and 3k .
.
5k+3k = length of segment
Suppose the length of segment is y
8k = y
k = y/8
.
Hence ,
5k = 5(y/8)
3k = 3(y/8)
.
As the value of the segment wasn't given , it seems a bit complicated..
.
Hope u understand!

6 0

2 years ago

You ask 125 randomly chosen students to name their favorite food. There are 1500 students in the school. Predict the number of s

alekssr [168]

You need to find the percent of the 125 surveyed students to find the number of estimated students that like pizza.

58/125 = .464 or 46.4%

1500*.464 = 696 students like pizza.

Hope this helps!

3 0

2 years ago

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