All categories

2 years ago

1. Last summer, Jon's family found 152 shells at the beach. This summer they were

Mathematics

2 answers:

SVEN [57.7K]2 years ago

7 0

Answer:

8 Shells

Step-by-step explanation:

The shells are eight because they're are eight shells left because they only found eight

mixer [17]2 years ago

3 0

Last Summer: 152 shells

This Summer: 63 Shells

7 x 9 = 63

Then, we subtract this summer's amount of shells from 152 to get our difference. 152 minus 63 equals 89 shells.

They found 89 fewer shells this year than last year.

You might be interested in

4y+3=3y+x in slope intercept form

nirvana33 [79]

Answer:

y = x - 3

Step-by-step explanation:

4y + 3 = 3y + x

y + 3 = x

y = x - 3

4 0

2 years ago

Describe some main differences between an Euler graph and a tree graph.

posledela

Answer:

The Obvious

Euler graph all connects almost like a circle

A tree graph looks like it branches off each other with no line connect in a circle like form

3 0

2 years ago

4 + 5x = 3 (-x + 3) -11

Salsk061 [2.6K]

Answer:

4 + 5x = 3 (-x + 3) -11

4+5x=-3x+9-11

5x+3x=9-11-4

8x= -6

x= -0.75

8 0

2 years ago

Using the figure below, select the pairs of complementary angles.

Mila [183]

Answer:

c) <DBE and <EBC

Step-by-step explanation:

This is because when added together, both angles equal 90 degrees.

Complementary angles always equal 90 degrees.

8 0

2 years ago

Solve the system of equations by substitution. 3/8 x + 1/3 y =17/24 and <br> x + 7y = 8

goblinko [34]

$\left \{ {{ \frac{3}{8}x+ \frac{1}{3}y = \frac{17}{14} } \atop {x+7y=8}} \right.$

To solve this system by substitution, first isolate x in the second equation.

$x+7y=8$
$x+7y-7y=8-7y$
$x=8-7y$

Now, plug this expression ( $8-7y$ ) for x in the top equation to solve for y.

$\frac{3}{8} (8-7y)+ \frac{1}{3} y= \frac{17}{14}$
$3- \frac{21}{8} y+ \frac{1}{3} y= \frac{17}{24}$
$72-63y+8y=17$
$72-55y=17$
$-55y=17-72$
$-55y=-55$
$y=1$

Now that you have y, plug it into the second equation and solve for x.

$x+7y=8$
$x+7(1)=8$
$x+7=8$
$x=1$

Last step is to plug your x- and y-values in to both equations to check your work.

$\frac{3}{8} (1)+ \frac{1}{3} y= \frac{17}{24}$

$\frac{3}{8} * \frac{3}{3} = \frac{9}{24} ; \frac{1}{3} * \frac{8}{8} = \frac{8}{24}$

$\frac{9}{24} + \frac{8}{24} = \frac{17}{24}$ <--True

$1+7(1)=8$
$1+7=8$ <--True

Answer:
$x=1 \\ y=1$

5 0

3 years ago