Ask question

Ask question

All categories

mihalych1998 [28]

3 years ago

11

There are 13 fish in an aquarium. Seven of the fish are guppies. How many non-guppies are in the aquarium? A. The number of gupp

ies. B. The number of non-guppies. C. The total number of fish.

1 answer:

Paladinen [302]3 years ago

3 0

A.7 guppies
B.6 non-guppies
C.13 fish

You might be interested in

Different sizes of string needs to be cut to go around various shapes. All of the following sizes are in inches.

Brilliant_brown [7]

Answer:

first one

Step-by-step explanation:

6 0

3 years ago

A cafe sells cups of coffee and tea. There were 6 times as many cups of coffee sold as cups of tea within an hour, for a total o

Maurinko [17]

9 cups of tea were sold.

For each 6 cups of coffee, 1 cup of tea was sold. So 54/6 = 9.

4 0

3 years ago

The sum of three numbers is 8. The third is 9

Ierofanga [76]

Answer:

→<u> </u><u>First</u><u> </u><u>value</u><u> </u><u>is</u><u> </u><u>1</u>

→<u> </u><u>Second</u><u> </u><u>value</u><u> </u><u>is</u><u> </u><u>2</u>

→<u> </u><u>Third</u><u> </u><u>value</u><u> </u><u>is</u><u> </u><u>5</u>

Step-by-step explanation:

• let numbers be x, y and z

${ \tt{z = 8y - 9 - - - (eqn \: 1)}} \\ \\ { \tt{10x = 8y - 7 - - - (eqn \: 2)}} \\ \\ { \tt{x + y + z = 8 - - - (eqn \: 3)}}$

• from eqn 2, make x the subject:

${ \tt{x = \frac{8y - 7}{10} }} \\$

• substitute all variables in eqn 3:

${ \tt{ \frac{8y - 7}{10} + y + 8y - 9 = 8}} \\ \\ { \tt{8y - 7 + 10y + 80y - 90 = 80}} \\ \\ { \tt{98y = 177}} \\ \\ { \boxed{ \tt{ \: y = 1.8}}}$

• find z

${ \tt{z = 8y - 9}} \\ \\ { \tt{z = 8(1.8) - 9}} \\ \\ { \tt{z = 14.4 - 9}} \\ \\ { \boxed{ \tt{ \: z = 5.4 \: }}}$

• find x:

${ \tt{x = \frac{8(1.8) - 7}{10} }} \\ \\ { \tt{x = \frac{7.4}{10} }} \\ \\ { \boxed{ \tt{ \: x = 0.74 \: }}}$

Rounding to nearest value:

${ \boxed{ \rm{x = 1}}} \\ { \boxed{ \rm{y =2 }}} \\ { \boxed{ \rm{z = 5}}}$

7 0

3 years ago

It takes 1.5 hours for jayson to mow a lawn. Linda can mow the same lawn in 2hrs. How long with it take them, working together,

Nataly [62]

1.75 hours, add them up and divide by two and you get your answer

8 0

3 years ago

Find the measure of angle angle AGE in the figure below. Enter only the number.<br> Help please!

kirill115 [55]

Answer:

AGE = 129 degrees

Step-by-step explanation:

8 0

3 years ago