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2 years ago

Help me plz! I need the answer...

Mathematics

1 answer:

den301095 [7]2 years ago

3 0

Answer: I know 3.6 + 4.0 = 7.2

Step-by-step explanation:

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Does the table represent a function?(Only 2 hours to answer!)

alisha [4.7K]

Answer: (a) Yes. The table is a function.

Step-by-step explanation:

In order to be a function, there cannot be any duplicate x-values.

In the given table, each x-value is different so this IS a function.

6 0

3 years ago

Two tailors, Valentina and Laura, sit down to do some embroidery. Valentina can embroider 2 shirts per hour, and Laura can get t

mina [271]

Answer:

Valentina and Laura finished the same total number of shirts in $4$ hours.

Total number of shirts finished by Valentina $=23$

Total number of shirts finished by Laura $=23$

Step-by-step explanation:

Suppose that Valentina and Laura finished the same total number of shirts in $t$ hours.

Valentina can embroider 2 shirts per hour and Valentina has already completed 15 shirts.

Total number of shirts finished by Valentina $=2t+15$

Laura can get through 3 shirts per hour and Laura has completed 11 shirts.

Total number of shirts finished by Laura $=3t+11$

Therefore,

$2t+15=3t+11\\3t-2t=15-11\\t=4$

So,

Valentina and Laura finished the same total number of shirts in $4$ hours.

Total number of shirts finished by Valentina $=2(4)+15=8+15=23$

Total number of shirts finished by Laura $=3(4)+11=12+11=23$

6 0

3 years ago

Jeremy bought postcards on a trip. He

noname [10]

Answer:

T = total #

T = 5 (to the aunt) + 1/2 (T - 5) (to his friends) + 1 (to his sister) + 4 (left)

T = 5 + 1/2 (T - 5) + 1 + 4

T = 10 + 1/2 (T - 5)

2T = 20 + (T - 5)

2T = 20 + T - 5

2T = 15 + T

T = 15

Step-by-step explanation:

5 0

3 years ago

Marta walked 4.9 miles per hour for 0.57 hours. How far did she walk?

iragen [17]

Answer:

$\huge\boxed{\sf Distance = 2.793\ miles}$

Step-by-step explanation:

Given Data:

Speed = 4.9 mph

Time = 0.57 hours

Required:

Distance = ?

Formula:

Distance = Speed * Time

Solution:

Distance = 4.9 * 0.57

Distance = 2.793 miles

$\rule[225]{225}{2}$

Hope this helped!

7 0

3 years ago

If p(q) = q^2 4q- 12 then what is p(-1)

guapka [62]

Answer:

$\bold{p(q) = q^2 4q- 12 } \\ \bold{p( - 1) = {( - 1)}^{2} \times 4 \times ( - 1) - 12} \\ = \bold {1 \times ( - 4) - 12} \\ \bold{ = ( - 4) - 12} \\ \bold{ p( - 1)= - 16}$

5 0

2 years ago

Read 2 more answers